40104512591 has 16 divisors (see below), whose sum is σ = 47173317408. Its totient is φ = 33613046400.

The previous prime is 40104512579. The next prime is 40104512593. The reversal of 40104512591 is 19521540104.

40104512591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40104512591 - 2²⁶ = 40037403727 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 (40104512593) 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, 53396 + ... + 288201.

It is an arithmetic number, because the mean of its divisors is an integer number (2948332338).

Almost surely, 2^40104512591 is an apocalyptic number.

40104512591 is a deficient number, since it is larger than the sum of its proper divisors (7068804817).

40104512591 is a wasteful number, since it uses less digits than its factorization.

40104512591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342442.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 40104512591 in words is "forty billion, one hundred four million, five hundred twelve thousand, five hundred ninety-one".