40108638815015 has 16 divisors (see below), whose sum is σ = 48323164480416. Its totient is φ = 31958384640000.

The previous prime is 40108638814999. The next prime is 40108638815033. The reversal of 40108638815015 is 51051883680104.

It is not a de Polignac number, because 40108638815015 - 2⁴ = 40108638814999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62330759 + ... + 62970951.

It is an arithmetic number, because the mean of its divisors is an integer number (3020197780026).

Almost surely, 2^{40108638815015} is an apocalyptic number.

40108638815015 is a deficient number, since it is larger than the sum of its proper divisors (8214525665401).

40108638815015 is a wasteful number, since it uses less digits than its factorization.

40108638815015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690370.

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 40108638815015 in words is "forty trillion, one hundred eight billion, six hundred thirty-eight million, eight hundred fifteen thousand, fifteen".