40177368128 has 28 divisors (see below), whose sum is σ = 81671530332. Its totient is φ = 19598714880.

The previous prime is 40177368113. The next prime is 40177368151. The reversal of 40177368128 is 82186377104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4141179904 + 36036188224 = 64352^2 + 189832^2 .

It is a super-2 number, since 2×40177368128² (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 3 ways as a sum of consecutive naturals, for example, 7653125 + ... + 7658372.

It is an arithmetic number, because the mean of its divisors is an integer number (2916840369).

Almost surely, 2^40177368128 is an apocalyptic number.

It is an amenable number.

40177368128 is an abundant number, since it is smaller than the sum of its proper divisors (41494162204).

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

40177368128 is a wasteful number, since it uses less digits than its factorization.

40177368128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15311550 (or 15311540 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 40177368128 in words is "forty billion, one hundred seventy-seven million, three hundred sixty-eight thousand, one hundred twenty-eight".