40868999125 has 8 divisors (see below), whose sum is σ = 51004511064. Its totient is φ = 32695199200.

The previous prime is 40868999117. The next prime is 40868999177. The reversal of 40868999125 is 52199986804.

It can be written as a sum of positive squares in 4 ways, for example, as 8214340689 + 32654658436 = 90633^2 + 180706^2 .

It is not a de Polignac number, because 40868999125 - 2³ = 40868999117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163475872 + ... + 163476121.

It is an arithmetic number, because the mean of its divisors is an integer number (6375563883).

Almost surely, 2^40868999125 is an apocalyptic number.

It is an amenable number.

40868999125 is a deficient number, since it is larger than the sum of its proper divisors (10135511939).

40868999125 is an equidigital number, since it uses as much as digits as its factorization.

40868999125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326952008 (or 326951998 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 61.

The spelling of 40868999125 in words is "forty billion, eight hundred sixty-eight million, nine hundred ninety-nine thousand, one hundred twenty-five".