40121113626 has 24 divisors (see below), whose sum is σ = 94831723584. Its totient is φ = 12157913160.

The previous prime is 40121113609. The next prime is 40121113657. The reversal of 40121113626 is 62631112104.

It is a happy number.

40121113626 is a `hidden beast` number, since 4 + 0 + 1 + 21 + 1 + 13 + 626 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40121113626.

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 11 ways as a sum of consecutive naturals, for example, 101315746 + ... + 101316141.

It is an arithmetic number, because the mean of its divisors is an integer number (3951321816).

Almost surely, 2^40121113626 is an apocalyptic number.

40121113626 is an abundant number, since it is smaller than the sum of its proper divisors (54710609958).

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

40121113626 is a wasteful number, since it uses less digits than its factorization.

40121113626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202631906 (or 202631903 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 40121113626 in words is "forty billion, one hundred twenty-one million, one hundred thirteen thousand, six hundred twenty-six".