20107881325 has 72 divisors (see below), whose sum is σ = 29374494912. Its totient is φ = 13613806080.

The previous prime is 20107881301. The next prime is 20107881379. The reversal of 20107881325 is 52318870102.

It is not a de Polignac number, because 20107881325 - 2¹³ = 20107873133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46438309 + ... + 46438741.

It is an arithmetic number, because the mean of its divisors is an integer number (407979096).

Almost surely, 2^20107881325 is an apocalyptic number.

20107881325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20107881325 is a deficient number, since it is larger than the sum of its proper divisors (9266613587).

20107881325 is a wasteful number, since it uses less digits than its factorization.

20107881325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 20107881325 in words is "twenty billion, one hundred seven million, eight hundred eighty-one thousand, three hundred twenty-five".