20849079625 has 32 divisors (see below), whose sum is σ = 28573339392. Its totient is φ = 15062400000.

The previous prime is 20849079613. The next prime is 20849079703. The reversal of 20849079625 is 52697094802.

It is not a de Polignac number, because 20849079625 - 2⁹ = 20849079113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157417 + ... + 257833.

It is an arithmetic number, because the mean of its divisors is an integer number (892916856).

Almost surely, 2^20849079625 is an apocalyptic number.

20849079625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20849079625 is a deficient number, since it is larger than the sum of its proper divisors (7724259767).

20849079625 is a wasteful number, since it uses less digits than its factorization.

20849079625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100594 (or 100584 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 20849079625 in words is "twenty billion, eight hundred forty-nine million, seventy-nine thousand, six hundred twenty-five".