40404036537 has 12 divisors (see below), whose sum is σ = 58363368960. Its totient is φ = 26935109208.

The previous prime is 40404036509. The next prime is 40404036557. The reversal of 40404036537 is 73563040404.

It is a happy number.

40404036537 is a `hidden beast` number, since 40 + 40 + 40 + 3 + 6 + 537 = 666.

It is not a de Polignac number, because 40404036537 - 2¹⁰ = 40404035513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40404036557) 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 11 ways as a sum of consecutive naturals, for example, 302208 + ... + 414894.

It is an arithmetic number, because the mean of its divisors is an integer number (4863614080).

Almost surely, 2^40404036537 is an apocalyptic number.

It is an amenable number.

40404036537 is a deficient number, since it is larger than the sum of its proper divisors (17959332423).

40404036537 is a wasteful number, since it uses less digits than its factorization.

40404036537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152532 (or 152529 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 40404036537 in words is "forty billion, four hundred four million, thirty-six thousand, five hundred thirty-seven".