40987864040 has 32 divisors (see below), whose sum is σ = 93785796000. Its totient is φ = 16117260864.

The previous prime is 40987864039. The next prime is 40987864051. The reversal of 40987864040 is 4046878904.

It is a self number, because there is not a number n which added to its sum of digits gives 40987864040.

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, 8681510 + ... + 8686229.

It is an arithmetic number, because the mean of its divisors is an integer number (2930806125).

Almost surely, 2^40987864040 is an apocalyptic number.

40987864040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40987864040 is an abundant number, since it is smaller than the sum of its proper divisors (52797931960).

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

40987864040 is a wasteful number, since it uses less digits than its factorization.

40987864040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17367809 (or 17367805 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 40987864040 in words is "forty billion, nine hundred eighty-seven million, eight hundred sixty-four thousand, forty".