72402255153188 has 12 divisors (see below), whose sum is σ = 126704010007260. Its totient is φ = 36201109436832.

The previous prime is 72402255153187. The next prime is 72402255153223. The reversal of 72402255153188 is 88135155220427.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38561019901504 + 33841235251684 = 6209752^2 + 5817322^2 .

It is not an unprimeable number, because it can be changed into a prime (72402255153187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8806970 + ... + 14911982.

It is an arithmetic number, because the mean of its divisors is an integer number (10558667500605).

Almost surely, 2^{72402255153188} is an apocalyptic number.

It is an amenable number.

72402255153188 is a deficient number, since it is larger than the sum of its proper divisors (54301754854072).

72402255153188 is a wasteful number, since it uses less digits than its factorization.

72402255153188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9069886 (or 9069884 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 53.

The spelling of 72402255153188 in words is "seventy-two trillion, four hundred two billion, two hundred fifty-five million, one hundred fifty-three thousand, one hundred eighty-eight".