40135657677 has 4 divisors (see below), whose sum is σ = 53514210240. Its totient is φ = 26757105116.

The previous prime is 40135657669. The next prime is 40135657693. The reversal of 40135657677 is 77675653104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40135657677 - 2³ = 40135657669 is a prime.

It is a super-2 number, since 2×40135657677² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40135657477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6689276277 + ... + 6689276282.

It is an arithmetic number, because the mean of its divisors is an integer number (13378552560).

Almost surely, 2^40135657677 is an apocalyptic number.

It is an amenable number.

40135657677 is a deficient number, since it is larger than the sum of its proper divisors (13378552563).

40135657677 is a wasteful number, since it uses less digits than its factorization.

40135657677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13378552562.

The product of its (nonzero) digits is 3704400, while the sum is 51.

The spelling of 40135657677 in words is "forty billion, one hundred thirty-five million, six hundred fifty-seven thousand, six hundred seventy-seven".