263115052256431 has 2 divisors, whose sum is σ = 263115052256432. Its totient is φ = 263115052256430.

The previous prime is 263115052256351. The next prime is 263115052256503. The reversal of 263115052256431 is 134652250511362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263115052256431 - 2¹⁵ = 263115052223663 is a prime.

It is a super-2 number, since 2×263115052256431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263115059256431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131557526128215 + 131557526128216.

It is an arithmetic number, because the mean of its divisors is an integer number (131557526128216).

Almost surely, 2^{263115052256431} is an apocalyptic number.

263115052256431 is a deficient number, since it is larger than the sum of its proper divisors (1).

263115052256431 is an equidigital number, since it uses as much as digits as its factorization.

263115052256431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 263115052256431 in words is "two hundred sixty-three trillion, one hundred fifteen billion, fifty-two million, two hundred fifty-six thousand, four hundred thirty-one".