40591672488 has 24 divisors (see below), whose sum is σ = 109935779850. Its totient is φ = 13530557472.

The previous prime is 40591672427. The next prime is 40591672493. The reversal of 40591672488 is 88427619504.

It is a happy number.

40591672488 is a `hidden beast` number, since 4 + 0 + 5 + 91 + 6 + 72 + 488 = 666.

40591672488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 24248095524 + 16343576964 = 155718^2 + 127842^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×40591672488² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281886543 + ... + 281886686.

Almost surely, 2^40591672488 is an apocalyptic number.

It is an amenable number.

40591672488 is an abundant number, since it is smaller than the sum of its proper divisors (69344107362).

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

40591672488 is a wasteful number, since it uses less digits than its factorization.

40591672488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563773241 (or 563773234 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 40591672488 in words is "forty billion, five hundred ninety-one million, six hundred seventy-two thousand, four hundred eighty-eight".