40405264537 has 32 divisors (see below), whose sum is σ = 45517344768. Its totient is φ = 35548800000.

The previous prime is 40405264477. The next prime is 40405264541. The reversal of 40405264537 is 73546250404.

It is a cyclic number.

It is not a de Polignac number, because 40405264537 - 2²³ = 40396875929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40405264537.

It is not an unprimeable number, because it can be changed into a prime (40405264937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35103912 + ... + 35105062.

It is an arithmetic number, because the mean of its divisors is an integer number (1422417024).

Almost surely, 2^40405264537 is an apocalyptic number.

It is an amenable number.

40405264537 is a deficient number, since it is larger than the sum of its proper divisors (5112080231).

40405264537 is a wasteful number, since it uses less digits than its factorization.

40405264537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 40405264537 in words is "forty billion, four hundred five million, two hundred sixty-four thousand, five hundred thirty-seven".