978159348968 has 16 divisors (see below), whose sum is σ = 1834338934080. Its totient is φ = 489002299888.

The previous prime is 978159348931. The next prime is 978159348983. The reversal of 978159348968 is 869843951879.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9618080 + ... + 9719247.

It is an arithmetic number, because the mean of its divisors is an integer number (114646183380).

Almost surely, 2^978159348968 is an apocalyptic number.

It is an amenable number.

978159348968 is a deficient number, since it is larger than the sum of its proper divisors (856179585112).

978159348968 is a wasteful number, since it uses less digits than its factorization.

978159348968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19343656 (or 19343652 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 77.

The spelling of 978159348968 in words is "nine hundred seventy-eight billion, one hundred fifty-nine million, three hundred forty-eight thousand, nine hundred sixty-eight".