74378231576257 has 32 divisors (see below), whose sum is σ = 94080742963200. Its totient is φ = 58539128578560.

The previous prime is 74378231576251. The next prime is 74378231576263. The reversal of 74378231576257 is 75267513287347.

It is an interprime number because it is at equal distance from previous prime (74378231576251) and next prime (74378231576263).

It is not a de Polignac number, because 74378231576257 - 2¹¹ = 74378231574209 is a prime.

It is a super-2 number, since 2×74378231576257² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74378231576192 and 74378231576201.

It is not an unprimeable number, because it can be changed into a prime (74378231576251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155317713 + ... + 155795854.

It is an arithmetic number, because the mean of its divisors is an integer number (2940023217600).

Almost surely, 2^{74378231576257} is an apocalyptic number.

It is an amenable number.

74378231576257 is a deficient number, since it is larger than the sum of its proper divisors (19702511386943).

74378231576257 is a wasteful number, since it uses less digits than its factorization.

74378231576257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311113646 (or 311113632 counting only the distinct ones).

The product of its digits is 414892800, while the sum is 67.

The spelling of 74378231576257 in words is "seventy-four trillion, three hundred seventy-eight billion, two hundred thirty-one million, five hundred seventy-six thousand, two hundred fifty-seven".