214139488697 has 2 divisors, whose sum is σ = 214139488698. Its totient is φ = 214139488696.

The previous prime is 214139488691. The next prime is 214139488723. The reversal of 214139488697 is 796884931412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131117134201 + 83022354496 = 362101^2 + 288136^2 .

It is a cyclic number.

It is not a de Polignac number, because 214139488697 - 2³⁴ = 196959619513 is a prime.

It is not a weakly prime, because it can be changed into another prime (214139488691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107069744348 + 107069744349.

It is an arithmetic number, because the mean of its divisors is an integer number (107069744349).

Almost surely, 2^214139488697 is an apocalyptic number.

It is an amenable number.

214139488697 is a deficient number, since it is larger than the sum of its proper divisors (1).

214139488697 is an equidigital number, since it uses as much as digits as its factorization.

214139488697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 62.

The spelling of 214139488697 in words is "two hundred fourteen billion, one hundred thirty-nine million, four hundred eighty-eight thousand, six hundred ninety-seven".