40756957857 has 24 divisors (see below), whose sum is σ = 73397812800. Its totient is φ = 21172445280.

The previous prime is 40756957849. The next prime is 40756957873. The reversal of 40756957857 is 75875965704.

40756957857 is a `hidden beast` number, since 4 + 0 + 7 + 5 + 6 + 9 + 578 + 57 = 666.

It is not a de Polignac number, because 40756957857 - 2³ = 40756957849 is a prime.

It is a super-2 number, since 2×40756957857² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 40756957794 and 40756957803.

It is not an unprimeable number, because it can be changed into a prime (40756957807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29405482 + ... + 29406867.

It is an arithmetic number, because the mean of its divisors is an integer number (3058242200).

Almost surely, 2^40756957857 is an apocalyptic number.

It is an amenable number.

40756957857 is a deficient number, since it is larger than the sum of its proper divisors (32640854943).

40756957857 is a wasteful number, since it uses less digits than its factorization.

40756957857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58812373 (or 58812370 counting only the distinct ones).

The product of its (nonzero) digits is 74088000, while the sum is 63.

The spelling of 40756957857 in words is "forty billion, seven hundred fifty-six million, nine hundred fifty-seven thousand, eight hundred fifty-seven".