78298321960 has 32 divisors (see below), whose sum is σ = 176601997800. Its totient is φ = 31242746880.

The previous prime is 78298321939. The next prime is 78298322009. The reversal of 78298321960 is 6912389287.

It can be written as a sum of positive squares in 4 ways, for example, as 78239921796 + 58400164 = 279714^2 + 7642^2 .

It is a super-2 number, since 2×78298321960² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2376621 + ... + 2409340.

Almost surely, 2^78298321960 is an apocalyptic number.

It is an amenable number.

78298321960 is an abundant number, since it is smaller than the sum of its proper divisors (98303675840).

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

78298321960 is a wasteful number, since it uses less digits than its factorization.

78298321960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786381 (or 4786377 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 78298321960 in words is "seventy-eight billion, two hundred ninety-eight million, three hundred twenty-one thousand, nine hundred sixty".