2128870597 has 4 divisors (see below), whose sum is σ = 2432994976. Its totient is φ = 1824746220.

The previous prime is 2128870567. The next prime is 2128870633. The reversal of 2128870597 is 7950788212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2128870597 - 2²³ = 2120481989 is a prime.

It is a super-2 number, since 2×2128870597² = 9064180037542272818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2128870597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128870507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152062179 + ... + 152062192.

It is an arithmetic number, because the mean of its divisors is an integer number (608248744).

Almost surely, 2^2128870597 is an apocalyptic number.

It is an amenable number.

2128870597 is a deficient number, since it is larger than the sum of its proper divisors (304124379).

2128870597 is an equidigital number, since it uses as much as digits as its factorization.

2128870597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304124378.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 2128870597 is about 46139.6857054748. The cubic root of 2128870597 is about 1286.4209018622.

The spelling of 2128870597 in words is "two billion, one hundred twenty-eight million, eight hundred seventy thousand, five hundred ninety-seven".