2451651163 has 4 divisors (see below), whose sum is σ = 2640239728. Its totient is φ = 2263062600.

The previous prime is 2451651133. The next prime is 2451651179. The reversal of 2451651163 is 3611561542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3611561542 = 2 ⋅1805780771.

It is a cyclic number.

It is not a de Polignac number, because 2451651163 - 2²¹ = 2449554011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451651133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94294263 + ... + 94294288.

It is an arithmetic number, because the mean of its divisors is an integer number (660059932).

Almost surely, 2^2451651163 is an apocalyptic number.

2451651163 is a deficient number, since it is larger than the sum of its proper divisors (188588565).

2451651163 is a wasteful number, since it uses less digits than its factorization.

2451651163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188588564.

The product of its digits is 21600, while the sum is 34.

The square root of 2451651163 is about 49514.1511388411. The cubic root of 2451651163 is about 1348.4025298285.

The spelling of 2451651163 in words is "two billion, four hundred fifty-one million, six hundred fifty-one thousand, one hundred sixty-three".