2127660797 has 4 divisors (see below), whose sum is σ = 2127867456. Its totient is φ = 2127454140.

The previous prime is 2127660751. The next prime is 2127660883. The reversal of 2127660797 is 7970667212.

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 a de Polignac number, because none of the positive numbers 2^k-2127660797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127660497) 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, 87029 + ... + 108762.

It is an arithmetic number, because the mean of its divisors is an integer number (531966864).

Almost surely, 2^2127660797 is an apocalyptic number.

It is an amenable number.

2127660797 is a deficient number, since it is larger than the sum of its proper divisors (206659).

2127660797 is a wasteful number, since it uses less digits than its factorization.

2127660797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206658.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 2127660797 is about 46126.5736533725. The cubic root of 2127660797 is about 1286.1771721728.

The spelling of 2127660797 in words is "two billion, one hundred twenty-seven million, six hundred sixty thousand, seven hundred ninety-seven".