854168900234431 has 2 divisors, whose sum is σ = 854168900234432. Its totient is φ = 854168900234430.

The previous prime is 854168900234269. The next prime is 854168900234497. The reversal of 854168900234431 is 134432009861458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 854168900234431 - 2³¹ = 854166752750783 is a prime.

It is a super-2 number, since 2×854168900234431² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854168900634431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427084450117215 + 427084450117216.

It is an arithmetic number, because the mean of its divisors is an integer number (427084450117216).

Almost surely, 2^{854168900234431} is an apocalyptic number.

854168900234431 is a deficient number, since it is larger than the sum of its proper divisors (1).

854168900234431 is an equidigital number, since it uses as much as digits as its factorization.

854168900234431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 854168900234431 in words is "eight hundred fifty-four trillion, one hundred sixty-eight billion, nine hundred million, two hundred thirty-four thousand, four hundred thirty-one".