72195042408 has 32 divisors (see below), whose sum is σ = 180600718560. Its totient is φ = 24049932480.

The previous prime is 72195042407. The next prime is 72195042443. The reversal of 72195042408 is 80424059127.

It is a self number, because there is not a number n which added to its sum of digits gives 72195042408.

It is not an unprimeable number, because it can be changed into a prime (72195042407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903478 + ... + 980133.

It is an arithmetic number, because the mean of its divisors is an integer number (5643772455).

Almost surely, 2^72195042408 is an apocalyptic number.

It is an amenable number.

72195042408 is an abundant number, since it is smaller than the sum of its proper divisors (108405676152).

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

72195042408 is a wasteful number, since it uses less digits than its factorization.

72195042408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885217 (or 1885213 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 72195042408 in words is "seventy-two billion, one hundred ninety-five million, forty-two thousand, four hundred eight".