40631763557 has 16 divisors (see below), whose sum is σ = 51122544000. Its totient is φ = 31370639040.

The previous prime is 40631763553. The next prime is 40631763593. The reversal of 40631763557 is 75536713604.

It is a cyclic number.

It is not a de Polignac number, because 40631763557 - 2² = 40631763553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40631763553) 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 15 ways as a sum of consecutive naturals, for example, 2412182 + ... + 2428967.

It is an arithmetic number, because the mean of its divisors is an integer number (3195159000).

Almost surely, 2^40631763557 is an apocalyptic number.

It is an amenable number.

40631763557 is a deficient number, since it is larger than the sum of its proper divisors (10490780443).

40631763557 is a wasteful number, since it uses less digits than its factorization.

40631763557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841276.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 40631763557 in words is "forty billion, six hundred thirty-one million, seven hundred sixty-three thousand, five hundred fifty-seven".