8425879634213 has 2 divisors, whose sum is σ = 8425879634214. Its totient is φ = 8425879634212.

The previous prime is 8425879634149. The next prime is 8425879634233. The reversal of 8425879634213 is 3124369785248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4706543674849 + 3719335959364 = 2169457^2 + 1928558^2 .

It is a cyclic number.

It is not a de Polignac number, because 8425879634213 - 2⁶ = 8425879634149 is a prime.

It is a super-2 number, since 2×8425879634213² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8425879634233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212939817106 + 4212939817107.

It is an arithmetic number, because the mean of its divisors is an integer number (4212939817107).

Almost surely, 2^{8425879634213} is an apocalyptic number.

It is an amenable number.

8425879634213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8425879634213 is an equidigital number, since it uses as much as digits as its factorization.

8425879634213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69672960, while the sum is 62.

The spelling of 8425879634213 in words is "eight trillion, four hundred twenty-five billion, eight hundred seventy-nine million, six hundred thirty-four thousand, two hundred thirteen".