74715651856 has 10 divisors (see below), whose sum is σ = 144761575502. Its totient is φ = 37357825920.

The previous prime is 74715651841. The next prime is 74715651859. The reversal of 74715651856 is 65815651747.

It can be written as a sum of positive squares in only one way, i.e., 74114617600 + 601034256 = 272240^2 + 24516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74715651797 and 74715651806.

It is not an unprimeable number, because it can be changed into a prime (74715651859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2334864105 + ... + 2334864136.

Almost surely, 2^74715651856 is an apocalyptic number.

It is an amenable number.

74715651856 is a deficient number, since it is larger than the sum of its proper divisors (70045923646).

74715651856 is a wasteful number, since it uses less digits than its factorization.

74715651856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669728249 (or 4669728243 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 55.

The spelling of 74715651856 in words is "seventy-four billion, seven hundred fifteen million, six hundred fifty-one thousand, eight hundred fifty-six".