7481754066401 has 4 divisors (see below), whose sum is σ = 7547964279492. Its totient is φ = 7415543853312.

The previous prime is 7481754066349. The next prime is 7481754066421. The reversal of 7481754066401 is 1046604571847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1692913254400 + 5788840812001 = 1301120^2 + 2406001^2 .

It is a cyclic number.

It is not a de Polignac number, because 7481754066401 - 2⁶ = 7481754066337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7481754066421) 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, 33105106376 + ... + 33105106601.

It is an arithmetic number, because the mean of its divisors is an integer number (1886991069873).

Almost surely, 2^{7481754066401} is an apocalyptic number.

It is an amenable number.

7481754066401 is a deficient number, since it is larger than the sum of its proper divisors (66210213091).

7481754066401 is a wasteful number, since it uses less digits than its factorization.

7481754066401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66210213090.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 7481754066401 in words is "seven trillion, four hundred eighty-one billion, seven hundred fifty-four million, sixty-six thousand, four hundred one".