345427375877 has 2 divisors, whose sum is σ = 345427375878. Its totient is φ = 345427375876.

The previous prime is 345427375823. The next prime is 345427375889. The reversal of 345427375877 is 778573724543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244828029601 + 100599346276 = 494801^2 + 317174^2 .

It is a cyclic number.

It is not a de Polignac number, because 345427375877 - 2³⁸ = 70549468933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345427375897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172713687938 + 172713687939.

It is an arithmetic number, because the mean of its divisors is an integer number (172713687939).

Almost surely, 2^345427375877 is an apocalyptic number.

It is an amenable number.

345427375877 is a deficient number, since it is larger than the sum of its proper divisors (1).

345427375877 is an equidigital number, since it uses as much as digits as its factorization.

345427375877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138297600, while the sum is 62.

The spelling of 345427375877 in words is "three hundred forty-five billion, four hundred twenty-seven million, three hundred seventy-five thousand, eight hundred seventy-seven".