213461372779 has 2 divisors, whose sum is σ = 213461372780. Its totient is φ = 213461372778.

The previous prime is 213461372699. The next prime is 213461372783. The reversal of 213461372779 is 977273164312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213461372779 - 2²⁷ = 213327155051 is a prime.

It is not a weakly prime, because it can be changed into another prime (213461472779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106730686389 + 106730686390.

It is an arithmetic number, because the mean of its divisors is an integer number (106730686390).

Almost surely, 2^213461372779 is an apocalyptic number.

213461372779 is a deficient number, since it is larger than the sum of its proper divisors (1).

213461372779 is an equidigital number, since it uses as much as digits as its factorization.

213461372779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 52.

The spelling of 213461372779 in words is "two hundred thirteen billion, four hundred sixty-one million, three hundred seventy-two thousand, seven hundred seventy-nine".