40631417556 has 96 divisors (see below), whose sum is σ = 103868835840. Its totient is φ = 12321369984.

The previous prime is 40631417549. The next prime is 40631417569. The reversal of 40631417556 is 65571413604.

It is a super-2 number, since 2×40631417556² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 498385 + ... + 574151.

It is an arithmetic number, because the mean of its divisors is an integer number (1081967040).

Almost surely, 2^40631417556 is an apocalyptic number.

40631417556 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40631417556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51934417920).

40631417556 is an abundant number, since it is smaller than the sum of its proper divisors (63237418284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40631417556 is a wasteful number, since it uses less digits than its factorization.

40631417556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75893 (or 75891 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 40631417556 in words is "forty billion, six hundred thirty-one million, four hundred seventeen thousand, five hundred fifty-six".