40136510457 has 24 divisors (see below), whose sum is σ = 58175811200. Its totient is φ = 26665093728.

The previous prime is 40136510437. The next prime is 40136510459. The reversal of 40136510457 is 75401563104.

40136510457 is a `hidden beast` number, since 4 + 0 + 136 + 510 + 4 + 5 + 7 = 666.

40136510457 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 40136510457 - 2²³ = 40128121849 is a prime.

It is a super-2 number, since 2×40136510457² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40136510459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4849719 + ... + 4857987.

Almost surely, 2^40136510457 is an apocalyptic number.

It is an amenable number.

40136510457 is a deficient number, since it is larger than the sum of its proper divisors (18039300743).

40136510457 is a wasteful number, since it uses less digits than its factorization.

40136510457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10077 (or 10074 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 40136510457 in words is "forty billion, one hundred thirty-six million, five hundred ten thousand, four hundred fifty-seven".