20729460190684 has 24 divisors (see below), whose sum is σ = 41473980078048. Its totient is φ = 8880827289600.

The previous prime is 20729460190679. The next prime is 20729460190799. The reversal of 20729460190684 is 48609106492702.

It is a hoax number, since the sum of its digits (58) 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 7 ways as a sum of consecutive naturals, for example, 134383117 + ... + 134537284.

It is an arithmetic number, because the mean of its divisors is an integer number (1728082503252).

Almost surely, 2^{20729460190684} is an apocalyptic number.

It is an amenable number.

20729460190684 is an abundant number, since it is smaller than the sum of its proper divisors (20744519887364).

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

20729460190684 is a wasteful number, since it uses less digits than its factorization.

20729460190684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268923165 (or 268923163 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 20729460190684 in words is "twenty trillion, seven hundred twenty-nine billion, four hundred sixty million, one hundred ninety thousand, six hundred eighty-four".