623134156639 has 2 divisors, whose sum is σ = 623134156640. Its totient is φ = 623134156638.

The previous prime is 623134156543. The next prime is 623134156651. The reversal of 623134156639 is 936651431326.

It is a happy number.

623134156639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623134156639 - 2³⁷ = 485695203167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 623134156592 and 623134156601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623134156669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311567078319 + 311567078320.

It is an arithmetic number, because the mean of its divisors is an integer number (311567078320).

Almost surely, 2^623134156639 is an apocalyptic number.

623134156639 is a deficient number, since it is larger than the sum of its proper divisors (1).

623134156639 is an equidigital number, since it uses as much as digits as its factorization.

623134156639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 49.

The spelling of 623134156639 in words is "six hundred twenty-three billion, one hundred thirty-four million, one hundred fifty-six thousand, six hundred thirty-nine".