20617628592 has 40 divisors (see below), whose sum is σ = 58104227520. Its totient is φ = 6247766080.

The previous prime is 20617628579. The next prime is 20617628609. The reversal of 20617628592 is 29582671602.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 19523742 + ... + 19524797.

It is an arithmetic number, because the mean of its divisors is an integer number (1452605688).

Almost surely, 2^20617628592 is an apocalyptic number.

20617628592 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20617628592 is an abundant number, since it is smaller than the sum of its proper divisors (37486598928).

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

20617628592 is a wasteful number, since it uses less digits than its factorization.

20617628592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39048561 (or 39048555 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 20617628592 in words is "twenty billion, six hundred seventeen million, six hundred twenty-eight thousand, five hundred ninety-two".