40477255636455 has 48 divisors (see below), whose sum is σ = 79096051450080. Its totient is φ = 19625336058240.

The previous prime is 40477255636451. The next prime is 40477255636469. The reversal of 40477255636455 is 55463655277404.

It is a happy number.

40477255636455 is a `hidden beast` number, since 4 + 0 + 4 + 7 + 7 + 2 + 5 + 563 + 64 + 5 + 5 = 666.

It is not a de Polignac number, because 40477255636455 - 2² = 40477255636451 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40477255636392 and 40477255636401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40477255636451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1238956902 + ... + 1238989571.

It is an arithmetic number, because the mean of its divisors is an integer number (1647834405210).

Almost surely, 2^{40477255636455} is an apocalyptic number.

40477255636455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40477255636455 is a deficient number, since it is larger than the sum of its proper divisors (38618795813625).

40477255636455 is a wasteful number, since it uses less digits than its factorization.

40477255636455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477946509 (or 2477946492 counting only the distinct ones).

The product of its (nonzero) digits is 423360000, while the sum is 63.

The spelling of 40477255636455 in words is "forty trillion, four hundred seventy-seven billion, two hundred fifty-five million, six hundred thirty-six thousand, four hundred fifty-five".