20879145070 has 16 divisors (see below), whose sum is σ = 42951384288. Its totient is φ = 7158564000.

The previous prime is 20879145061. The next prime is 20879145071. The reversal of 20879145070 is 7054197802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20879145071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149136681 + ... + 149136820.

It is an arithmetic number, because the mean of its divisors is an integer number (2684461518).

Almost surely, 2^20879145070 is an apocalyptic number.

20879145070 is an abundant number, since it is smaller than the sum of its proper divisors (22072239218).

20879145070 is a wasteful number, since it uses less digits than its factorization.

20879145070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298273515.

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 20879145070 in words is "twenty billion, eight hundred seventy-nine million, one hundred forty-five thousand, seventy".