158212686413 has 2 divisors, whose sum is σ = 158212686414. Its totient is φ = 158212686412.

The previous prime is 158212686389. The next prime is 158212686497. The reversal of 158212686413 is 314686212851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156122185129 + 2090501284 = 395123^2 + 45722^2 .

It is a cyclic number.

It is not a de Polignac number, because 158212686413 - 2⁶ = 158212686349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158212086413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79106343206 + 79106343207.

It is an arithmetic number, because the mean of its divisors is an integer number (79106343207).

Almost surely, 2^158212686413 is an apocalyptic number.

It is an amenable number.

158212686413 is a deficient number, since it is larger than the sum of its proper divisors (1).

158212686413 is an equidigital number, since it uses as much as digits as its factorization.

158212686413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 47.

The spelling of 158212686413 in words is "one hundred fifty-eight billion, two hundred twelve million, six hundred eighty-six thousand, four hundred thirteen".