2125716800 has 42 divisors (see below), whose sum is σ = 5230595838. Its totient is φ = 850286080.

The previous prime is 2125716793. The next prime is 2125716811. The reversal of 2125716800 is 86175212.

It can be written as a sum of positive squares in 3 ways, for example, as 55830784 + 2069886016 = 7472^2 + 45496^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 662687 + ... + 665886.

Almost surely, 2^2125716800 is an apocalyptic number.

2125716800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125716800 is an abundant number, since it is smaller than the sum of its proper divisors (3104879038).

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

2125716800 is a wasteful number, since it uses less digits than its factorization.

2125716800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328595 (or 1328580 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2125716800 is about 46105.4964185399. The cubic root of 2125716800 is about 1285.7853355210.

The spelling of 2125716800 in words is "two billion, one hundred twenty-five million, seven hundred sixteen thousand, eight hundred".