40186572936 has 32 divisors (see below), whose sum is σ = 101405377440. Its totient is φ = 13270331648.

The previous prime is 40186572931. The next prime is 40186572971. The reversal of 40186572936 is 63927568104.

It is a super-2 number, since 2×40186572936² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40186572931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7821921 + ... + 7827056.

It is an arithmetic number, because the mean of its divisors is an integer number (3168918045).

It is a 1-persistent number, because it is pandigital, but 2⋅40186572936 = 80373145872 is not.

Almost surely, 2^40186572936 is an apocalyptic number.

It is an amenable number.

40186572936 is an abundant number, since it is smaller than the sum of its proper divisors (61218804504).

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

40186572936 is a wasteful number, since it uses less digits than its factorization.

40186572936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15649093 (or 15649089 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 40186572936 in words is "forty billion, one hundred eighty-six million, five hundred seventy-two thousand, nine hundred thirty-six".