78322125284 has 12 divisors (see below), whose sum is σ = 147607082364. Its totient is φ = 36148673184.

The previous prime is 78322125283. The next prime is 78322125307. The reversal of 78322125284 is 48252122387.

It can be written as a sum of positive squares in 2 ways, for example, as 15657016384 + 62665108900 = 125128^2 + 250330^2 .

It is a super-2 number, since 2×78322125284² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78322125283) 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, 753097307 + ... + 753097410.

It is an arithmetic number, because the mean of its divisors is an integer number (12300590197).

Almost surely, 2^78322125284 is an apocalyptic number.

It is an amenable number.

78322125284 is a deficient number, since it is larger than the sum of its proper divisors (69284957080).

78322125284 is a wasteful number, since it uses less digits than its factorization.

78322125284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506194734 (or 1506194732 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The spelling of 78322125284 in words is "seventy-eight billion, three hundred twenty-two million, one hundred twenty-five thousand, two hundred eighty-four".