74528597057 has 16 divisors (see below), whose sum is σ = 80716746240. Its totient is φ = 68545540608.

The previous prime is 74528597053. The next prime is 74528597137. The reversal of 74528597057 is 75079582547.

It is not a de Polignac number, because 74528597057 - 2² = 74528597053 is a prime.

It is a super-2 number, since 2×74528597057² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74528596987 and 74528597005.

It is not an unprimeable number, because it can be changed into a prime (74528597053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444869 + ... + 589037.

It is an arithmetic number, because the mean of its divisors is an integer number (5044796640).

Almost surely, 2^74528597057 is an apocalyptic number.

It is an amenable number.

74528597057 is a deficient number, since it is larger than the sum of its proper divisors (6188149183).

74528597057 is a wasteful number, since it uses less digits than its factorization.

74528597057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144880.

The product of its (nonzero) digits is 24696000, while the sum is 59.

The spelling of 74528597057 in words is "seventy-four billion, five hundred twenty-eight million, five hundred ninety-seven thousand, fifty-seven".