78032251250 has 30 divisors (see below), whose sum is σ = 146282166129. Its totient is φ = 31208950000.

The previous prime is 78032251249. The next prime is 78032251291. The reversal of 78032251250 is 5215223087.

It can be written as a sum of positive squares in 8 ways, for example, as 659821969 + 77372429281 = 25687^2 + 278159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=197525.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78032251250.

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 14 ways as a sum of consecutive naturals, for example, 9872300 + ... + 9880200.

Almost surely, 2^78032251250 is an apocalyptic number.

78032251250 is a deficient number, since it is larger than the sum of its proper divisors (68249914879).

78032251250 is an frugal number, since it uses more digits than its factorization.

78032251250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15824 (or 7908 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 78032251250 in words is "seventy-eight billion, thirty-two million, two hundred fifty-one thousand, two hundred fifty".