72195042450 has 48 divisors (see below), whose sum is σ = 179078466816. Its totient is φ = 19248273600.

The previous prime is 72195042443. The next prime is 72195042497. The reversal of 72195042450 is 5424059127.

It is a junction number, because it is equal to n+sod(n) for n = 72195042399 and 72195042408.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 776664 + ... + 864636.

It is an arithmetic number, because the mean of its divisors is an integer number (3730801392).

Almost surely, 2^72195042450 is an apocalyptic number.

72195042450 is an abundant number, since it is smaller than the sum of its proper divisors (106883424366).

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

72195042450 is a wasteful number, since it uses less digits than its factorization.

72195042450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93459 (or 93454 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 72195042450 in words is "seventy-two billion, one hundred ninety-five million, forty-two thousand, four hundred fifty".