40531035987 has 32 divisors (see below), whose sum is σ = 64740836160. Its totient is φ = 24912887040.

The previous prime is 40531035967. The next prime is 40531035991. The reversal of 40531035987 is 78953013504.

40531035987 is a `hidden beast` number, since 4 + 0 + 53 + 1 + 0 + 3 + 598 + 7 = 666.

It is not a de Polignac number, because 40531035987 - 2⁸ = 40531035731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40531035917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233437 + ... + 368177.

It is an arithmetic number, because the mean of its divisors is an integer number (2023151130).

Almost surely, 2^40531035987 is an apocalyptic number.

40531035987 is a deficient number, since it is larger than the sum of its proper divisors (24209800173).

40531035987 is a wasteful number, since it uses less digits than its factorization.

40531035987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135620 (or 135614 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 40531035987 in words is "forty billion, five hundred thirty-one million, thirty-five thousand, nine hundred eighty-seven".