74927428572 has 12 divisors (see below), whose sum is σ = 174830666696. Its totient is φ = 24975809520.

The previous prime is 74927428567. The next prime is 74927428573. The reversal of 74927428572 is 27582472947.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×74927428572² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74927428573) 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, 3121976179 + ... + 3121976202.

Almost surely, 2^74927428572 is an apocalyptic number.

It is an amenable number.

74927428572 is an abundant number, since it is smaller than the sum of its proper divisors (99903238124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74927428572 is a wasteful number, since it uses less digits than its factorization.

74927428572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243952388 (or 6243952386 counting only the distinct ones).

The product of its digits is 15805440, while the sum is 57.

The spelling of 74927428572 in words is "seventy-four billion, nine hundred twenty-seven million, four hundred twenty-eight thousand, five hundred seventy-two".