20942573802 has 128 divisors (see below), whose sum is σ = 46427385600. Its totient is φ = 6271795200.

The previous prime is 20942573791. The next prime is 20942573879. The reversal of 20942573802 is 20837524902.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32671402 + ... + 32672042.

It is an arithmetic number, because the mean of its divisors is an integer number (362713950).

Almost surely, 2^20942573802 is an apocalyptic number.

20942573802 is an abundant number, since it is smaller than the sum of its proper divisors (25484811798).

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

20942573802 is a wasteful number, since it uses less digits than its factorization.

20942573802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 20942573802 in words is "twenty billion, nine hundred forty-two million, five hundred seventy-three thousand, eight hundred two".