40163877172 has 24 divisors (see below), whose sum is σ = 70617947400. Its totient is φ = 19987415040.

The previous prime is 40163877163. The next prime is 40163877269. The reversal of 40163877172 is 27177836104.

It can be written as a sum of positive squares in 4 ways, for example, as 6896305936 + 33267571236 = 83044^2 + 182394^2 .

It is a super-2 number, since 2×40163877172² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868148 + ... + 1889524.

It is an arithmetic number, because the mean of its divisors is an integer number (2942414475).

Almost surely, 2^40163877172 is an apocalyptic number.

It is an amenable number.

40163877172 is a deficient number, since it is larger than the sum of its proper divisors (30454070228).

40163877172 is a wasteful number, since it uses less digits than its factorization.

40163877172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23571 (or 23569 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

It can be divided in two parts, 40163 and 877172, that added together give a triangular number (917335 = T₁₃₅₄).

The spelling of 40163877172 in words is "forty billion, one hundred sixty-three million, eight hundred seventy-seven thousand, one hundred seventy-two".