72235587000 has 128 divisors (see below), whose sum is σ = 237237062400. Its totient is φ = 18248976000.

The previous prime is 72235586993. The next prime is 72235587013. The reversal of 72235587000 is 78553227.

It is a self number, because there is not a number n which added to its sum of digits gives 72235587000.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 576646 + ... + 690645.

It is an arithmetic number, because the mean of its divisors is an integer number (1853414550).

Almost surely, 2^72235587000 is an apocalyptic number.

It is an amenable number.

72235587000 is an abundant number, since it is smaller than the sum of its proper divisors (165001475400).

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

72235587000 is a wasteful number, since it uses less digits than its factorization.

72235587000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267334 (or 1267320 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 72235587000 in words is "seventy-two billion, two hundred thirty-five million, five hundred eighty-seven thousand".