20704621802 has 8 divisors (see below), whose sum is σ = 31520469216. Its totient is φ = 10197798732.

The previous prime is 20704621739. The next prime is 20704621871. The reversal of 20704621802 is 20812640702.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 77255918 + ... + 77256185.

It is an arithmetic number, because the mean of its divisors is an integer number (3940058652).

Almost surely, 2^20704621802 is an apocalyptic number.

20704621802 is a deficient number, since it is larger than the sum of its proper divisors (10815847414).

20704621802 is a wasteful number, since it uses less digits than its factorization.

20704621802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154512172.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 20704621802 in words is "twenty billion, seven hundred four million, six hundred twenty-one thousand, eight hundred two".