20493692779104 has 144 divisors (see below), whose sum is σ = 60030218967264. Its totient is φ = 6627793766400.

The previous prime is 20493692779069. The next prime is 20493692779111. The reversal of 20493692779104 is 40197729639402.

20493692779104 is a `hidden beast` number, since 2 + 0 + 493 + 69 + 2 + 7 + 79 + 10 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2657164 + ... + 6931659.

It is an arithmetic number, because the mean of its divisors is an integer number (416876520606).

Almost surely, 2^{20493692779104} is an apocalyptic number.

20493692779104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20493692779104 is an abundant number, since it is smaller than the sum of its proper divisors (39536526188160).

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

20493692779104 is a wasteful number, since it uses less digits than its factorization.

20493692779104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9589061 (or 9589050 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 20493692779104 in words is "twenty trillion, four hundred ninety-three billion, six hundred ninety-two million, seven hundred seventy-nine thousand, one hundred four".