40388027515 has 32 divisors (see below), whose sum is σ = 53949825792. Its totient is φ = 28775760000.

The previous prime is 40388027509. The next prime is 40388027609. The reversal of 40388027515 is 51572088304.

40388027515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40388027515 - 2¹⁵ = 40387994747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2004240 + ... + 2024290.

It is an arithmetic number, because the mean of its divisors is an integer number (1685932056).

Almost surely, 2^40388027515 is an apocalyptic number.

40388027515 is a deficient number, since it is larger than the sum of its proper divisors (13561798277).

40388027515 is a wasteful number, since it uses less digits than its factorization.

40388027515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20811.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 40388027515 in words is "forty billion, three hundred eighty-eight million, twenty-seven thousand, five hundred fifteen".