268356412631 has 2 divisors, whose sum is σ = 268356412632. Its totient is φ = 268356412630.

The previous prime is 268356412609. The next prime is 268356412657. The reversal of 268356412631 is 136214653862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268356412631 - 2¹⁴ = 268356396247 is a prime.

It is a super-2 number, since 2×268356412631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268356412531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134178206315 + 134178206316.

It is an arithmetic number, because the mean of its divisors is an integer number (134178206316).

Almost surely, 2^268356412631 is an apocalyptic number.

268356412631 is a deficient number, since it is larger than the sum of its proper divisors (1).

268356412631 is an equidigital number, since it uses as much as digits as its factorization.

268356412631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 47.

The spelling of 268356412631 in words is "two hundred sixty-eight billion, three hundred fifty-six million, four hundred twelve thousand, six hundred thirty-one".