2125722788 has 24 divisors (see below), whose sum is σ = 4252987200. Its totient is φ = 910693728.

The previous prime is 2125722751. The next prime is 2125722791. The reversal of 2125722788 is 8872275212.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 74843 + ... + 99261.

It is an arithmetic number, because the mean of its divisors is an integer number (177207800).

Almost surely, 2^2125722788 is an apocalyptic number.

2125722788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2125722788 is an abundant number, since it is smaller than the sum of its proper divisors (2127264412).

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

2125722788 is a wasteful number, since it uses less digits than its factorization.

2125722788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27539 (or 27537 counting only the distinct ones).

The product of its digits is 250880, while the sum is 44.

The square root of 2125722788 is about 46105.5613565218. The cubic root of 2125722788 is about 1285.7865428432.

The spelling of 2125722788 in words is "two billion, one hundred twenty-five million, seven hundred twenty-two thousand, seven hundred eighty-eight".