40871890368 has 42 divisors (see below), whose sum is σ = 117151895744. Its totient is φ = 13623963264.

The previous prime is 40871890351. The next prime is 40871890373. The reversal of 40871890368 is 86309817804.

It is a super-2 number, since 2×40871890368² (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 5 ways as a sum of consecutive naturals, for example, 35478496 + ... + 35479647.

Almost surely, 2^40871890368 is an apocalyptic number.

40871890368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40871890368 is an abundant number, since it is smaller than the sum of its proper divisors (76280005376).

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

40871890368 is a wasteful number, since it uses less digits than its factorization.

40871890368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70958161 (or 70958148 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 40871890368 in words is "forty billion, eight hundred seventy-one million, eight hundred ninety thousand, three hundred sixty-eight".