978159348902 has 16 divisors (see below), whose sum is σ = 1478941707600. Its totient is φ = 485184241920.

The previous prime is 978159348877. The next prime is 978159348913. The reversal of 978159348902 is 209843951879.

It is a congruent number.

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, 1006499 + ... + 1723182.

It is an arithmetic number, because the mean of its divisors is an integer number (92433856725).

Almost surely, 2^978159348902 is an apocalyptic number.

978159348902 is a deficient number, since it is larger than the sum of its proper divisors (500782358698).

978159348902 is a wasteful number, since it uses less digits than its factorization.

978159348902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731111.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 978159348902 in words is "nine hundred seventy-eight billion, one hundred fifty-nine million, three hundred forty-eight thousand, nine hundred two".