40122872120 has 32 divisors (see below), whose sum is σ = 91806577200. Its totient is φ = 15777128448.

The previous prime is 40122872089. The next prime is 40122872137. The reversal of 40122872120 is 2127822104.

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, 8498249 + ... + 8502968.

Almost surely, 2^40122872120 is an apocalyptic number.

40122872120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40122872120 is an abundant number, since it is smaller than the sum of its proper divisors (51683705080).

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

40122872120 is a wasteful number, since it uses less digits than its factorization.

40122872120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17001287 (or 17001283 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The spelling of 40122872120 in words is "forty billion, one hundred twenty-two million, eight hundred seventy-two thousand, one hundred twenty".