40508085964957 has 16 divisors (see below), whose sum is σ = 43940031874480. Its totient is φ = 37121687396352.

The previous prime is 40508085964937. The next prime is 40508085965023. The reversal of 40508085964957 is 75946958080504.

It can be written as a sum of positive squares in 8 ways, for example, as 10258734961476 + 30249351003481 = 3202926^2 + 5499941^2 .

It is not a de Polignac number, because 40508085964957 - 2¹⁵ = 40508085932189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40508085964937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6253482 + ... + 10960027.

It is an arithmetic number, because the mean of its divisors is an integer number (2746251992155).

Almost surely, 2^{40508085964957} is an apocalyptic number.

It is an amenable number.

40508085964957 is a deficient number, since it is larger than the sum of its proper divisors (3431945909523).

40508085964957 is a wasteful number, since it uses less digits than its factorization.

40508085964957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17214832.

The product of its (nonzero) digits is 435456000, while the sum is 70.

The spelling of 40508085964957 in words is "forty trillion, five hundred eight billion, eighty-five million, nine hundred sixty-four thousand, nine hundred fifty-seven".