2129375790 has 160 divisors (see below), whose sum is σ = 6103278720. Its totient is φ = 531147456.

The previous prime is 2129375747. The next prime is 2129375821. The reversal of 2129375790 is 975739212.

2129375790 is a `hidden beast` number, since 21 + 29 + 37 + 579 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1276537 + ... + 1278203.

It is an arithmetic number, because the mean of its divisors is an integer number (38145492).

Almost surely, 2^2129375790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129375790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3051639360).

2129375790 is an abundant number, since it is smaller than the sum of its proper divisors (3973902930).

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

2129375790 is a wasteful number, since it uses less digits than its factorization.

2129375790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 2129375790 is about 46145.1599845531. The cubic root of 2129375790 is about 1286.5226521259.

The spelling of 2129375790 in words is "two billion, one hundred twenty-nine million, three hundred seventy-five thousand, seven hundred ninety".