40550687331 has 64 divisors (see below), whose sum is σ = 68218536960. Its totient is φ = 20813045760.

The previous prime is 40550687239. The next prime is 40550687341. The reversal of 40550687331 is 13378605504.

It is not a de Polignac number, because 40550687331 - 2⁹ = 40550686819 is a prime.

It is a super-2 number, since 2×40550687331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40550687341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18126145 + ... + 18128381.

It is an arithmetic number, because the mean of its divisors is an integer number (1065914640).

Almost surely, 2^40550687331 is an apocalyptic number.

40550687331 is a deficient number, since it is larger than the sum of its proper divisors (27667849629).

40550687331 is a wasteful number, since it uses less digits than its factorization.

40550687331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 40550687331 in words is "forty billion, five hundred fifty million, six hundred eighty-seven thousand, three hundred thirty-one".