20726035464 has 16 divisors (see below), whose sum is σ = 51815088720. Its totient is φ = 6908678480.

The previous prime is 20726035457. The next prime is 20726035559. The reversal of 20726035464 is 46453062702.

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, 431792382 + ... + 431792429.

It is an arithmetic number, because the mean of its divisors is an integer number (3238443045).

Almost surely, 2^20726035464 is an apocalyptic number.

20726035464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20726035464 is an abundant number, since it is smaller than the sum of its proper divisors (31089053256).

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

20726035464 is a wasteful number, since it uses less digits than its factorization.

20726035464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863584820 (or 863584816 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 20726035464 in words is "twenty billion, seven hundred twenty-six million, thirty-five thousand, four hundred sixty-four".