623089899431 has 2 divisors, whose sum is σ = 623089899432. Its totient is φ = 623089899430.

The previous prime is 623089899407. The next prime is 623089899449. The reversal of 623089899431 is 134998980326.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623089899431 - 2³⁴ = 605910030247 is a prime.

It is a super-2 number, since 2×623089899431² (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 (623089899331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311544949715 + 311544949716.

It is an arithmetic number, because the mean of its divisors is an integer number (311544949716).

Almost surely, 2^623089899431 is an apocalyptic number.

623089899431 is a deficient number, since it is larger than the sum of its proper divisors (1).

623089899431 is an equidigital number, since it uses as much as digits as its factorization.

623089899431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 623089899431 in words is "six hundred twenty-three billion, eighty-nine million, eight hundred ninety-nine thousand, four hundred thirty-one".