2127099897 has 24 divisors (see below), whose sum is σ = 3320817864. Its totient is φ = 1304239104.

The previous prime is 2127099893. The next prime is 2127099901. The reversal of 2127099897 is 7989907212.

It is an interprime number because it is at equal distance from previous prime (2127099893) and next prime (2127099901).

It can be written as a sum of positive squares in 4 ways, for example, as 43086096 + 2084013801 = 6564^2 + 45651^2 .

It is not a de Polignac number, because 2127099897 - 2² = 2127099893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2127099893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408 + ... + 65225.

It is an arithmetic number, because the mean of its divisors is an integer number (138367411).

Almost surely, 2^2127099897 is an apocalyptic number.

It is an amenable number.

2127099897 is a deficient number, since it is larger than the sum of its proper divisors (1193717967).

2127099897 is a wasteful number, since it uses less digits than its factorization.

2127099897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65929 (or 65926 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 2127099897 is about 46120.4932432427. The cubic root of 2127099897 is about 1286.0641403430.

The spelling of 2127099897 in words is "two billion, one hundred twenty-seven million, ninety-nine thousand, eight hundred ninety-seven".