1988700125 has 8 divisors (see below), whose sum is σ = 2481897912. Its totient is φ = 1590960000.

The previous prime is 1988700089. The next prime is 1988700149. The reversal of 1988700125 is 5210078891.

It can be written as a sum of positive squares in 4 ways, for example, as 12630916 + 1976069209 = 3554^2 + 44453^2 .

It is not a de Polignac number, because 1988700125 - 2²⁶ = 1921591261 is a prime.

It is a Duffinian number.

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, 7954676 + ... + 7954925.

It is an arithmetic number, because the mean of its divisors is an integer number (310237239).

Almost surely, 2^1988700125 is an apocalyptic number.

It is an amenable number.

1988700125 is a deficient number, since it is larger than the sum of its proper divisors (493197787).

1988700125 is an equidigital number, since it uses as much as digits as its factorization.

1988700125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15909616 (or 15909606 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 1988700125 is about 44594.8441526596. The cubic root of 1988700125 is about 1257.5437419816.

The spelling of 1988700125 in words is "one billion, nine hundred eighty-eight million, seven hundred thousand, one hundred twenty-five".