7451469889 has 4 divisors (see below), whose sum is σ = 7452181440. Its totient is φ = 7450758340.

The previous prime is 7451469877. The next prime is 7451469901. The reversal of 7451469889 is 9889641547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9889641547 = 599 ⋅16510253.

It is an interprime number because it is at equal distance from previous prime (7451469877) and next prime (7451469901).

It is a cyclic number.

It is not a de Polignac number, because 7451469889 - 2²³ = 7443081281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7451469589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339829 + ... + 361090.

It is an arithmetic number, because the mean of its divisors is an integer number (1863045360).

Almost surely, 2^7451469889 is an apocalyptic number.

It is an amenable number.

7451469889 is a deficient number, since it is larger than the sum of its proper divisors (711551).

7451469889 is a wasteful number, since it uses less digits than its factorization.

7451469889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711550.

The product of its digits is 17418240, while the sum is 61.

The square root of 7451469889 is about 86321.8969265620. The cubic root of 7451469889 is about 1953.2027044359.

The spelling of 7451469889 in words is "seven billion, four hundred fifty-one million, four hundred sixty-nine thousand, eight hundred eighty-nine".