40687917888 has 56 divisors (see below), whose sum is σ = 107725464000. Its totient is φ = 13553566720.

The previous prime is 40687917871. The next prime is 40687917917. The reversal of 40687917888 is 88871978604.

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, 219988 + ... + 360236.

It is an arithmetic number, because the mean of its divisors is an integer number (1923669000).

Almost surely, 2^40687917888 is an apocalyptic number.

40687917888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40687917888 is an abundant number, since it is smaller than the sum of its proper divisors (67037546112).

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

40687917888 is a wasteful number, since it uses less digits than its factorization.

40687917888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141775 (or 141765 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 66.

The spelling of 40687917888 in words is "forty billion, six hundred eighty-seven million, nine hundred seventeen thousand, eight hundred eighty-eight".