74577500085 has 16 divisors (see below), whose sum is σ = 130171636800. Its totient is φ = 36158787840.

The previous prime is 74577500021. The next prime is 74577500089. The reversal of 74577500085 is 58000577547.

It is a happy number.

It is not a de Polignac number, because 74577500085 - 2⁶ = 74577500021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74577500089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225992260 + ... + 225992589.

It is an arithmetic number, because the mean of its divisors is an integer number (8135727300).

Almost surely, 2^74577500085 is an apocalyptic number.

It is an amenable number.

74577500085 is a deficient number, since it is larger than the sum of its proper divisors (55594136715).

74577500085 is a wasteful number, since it uses less digits than its factorization.

74577500085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451984868.

The product of its (nonzero) digits is 1372000, while the sum is 48.

The spelling of 74577500085 in words is "seventy-four billion, five hundred seventy-seven million, five hundred thousand, eighty-five".