20879635170 has 16 divisors (see below), whose sum is σ = 50111124480. Its totient is φ = 5567902704.

The previous prime is 20879635163. The next prime is 20879635181. The reversal of 20879635170 is 7153697802.

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, 347993890 + ... + 347993949.

It is an arithmetic number, because the mean of its divisors is an integer number (3131945280).

Almost surely, 2^20879635170 is an apocalyptic number.

20879635170 is an abundant number, since it is smaller than the sum of its proper divisors (29231489310).

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

20879635170 is a wasteful number, since it uses less digits than its factorization.

20879635170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695987849.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 20879635170 in words is "twenty billion, eight hundred seventy-nine million, six hundred thirty-five thousand, one hundred seventy".