20004651798 has 16 divisors (see below), whose sum is σ = 40557377136. Its totient is φ = 6576871680.

The previous prime is 20004651773. The next prime is 20004651803. The reversal of 20004651798 is 89715640002.

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, 22835923 + ... + 22836798.

It is an arithmetic number, because the mean of its divisors is an integer number (2534836071).

Almost surely, 2^20004651798 is an apocalyptic number.

20004651798 is an abundant number, since it is smaller than the sum of its proper divisors (20552725338).

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

20004651798 is a wasteful number, since it uses less digits than its factorization.

20004651798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45672799.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 20004651798 in words is "twenty billion, four million, six hundred fifty-one thousand, seven hundred ninety-eight".