213425614639 has 2 divisors, whose sum is σ = 213425614640. Its totient is φ = 213425614638.

The previous prime is 213425614613. The next prime is 213425614663. The reversal of 213425614639 is 936416524312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213425614639 - 2²³ = 213417226031 is a prime.

It is a super-2 number, since 2×213425614639² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213425614609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106712807319 + 106712807320.

It is an arithmetic number, because the mean of its divisors is an integer number (106712807320).

Almost surely, 2^213425614639 is an apocalyptic number.

213425614639 is a deficient number, since it is larger than the sum of its proper divisors (1).

213425614639 is an equidigital number, since it uses as much as digits as its factorization.

213425614639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The spelling of 213425614639 in words is "two hundred thirteen billion, four hundred twenty-five million, six hundred fourteen thousand, six hundred thirty-nine".