623434034361967 has 2 divisors, whose sum is σ = 623434034361968. Its totient is φ = 623434034361966.

The previous prime is 623434034361949. The next prime is 623434034361977. The reversal of 623434034361967 is 769163430434326.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623434034361967 - 2⁷ = 623434034361839 is a prime.

It is a super-2 number, since 2×623434034361967² (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 (623434034361917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311717017180983 + 311717017180984.

It is an arithmetic number, because the mean of its divisors is an integer number (311717017180984).

Almost surely, 2^{623434034361967} is an apocalyptic number.

623434034361967 is a deficient number, since it is larger than the sum of its proper divisors (1).

623434034361967 is an equidigital number, since it uses as much as digits as its factorization.

623434034361967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141087744, while the sum is 61.

The spelling of 623434034361967 in words is "six hundred twenty-three trillion, four hundred thirty-four billion, thirty-four million, three hundred sixty-one thousand, nine hundred sixty-seven".