623421537119 has 2 divisors, whose sum is σ = 623421537120. Its totient is φ = 623421537118.

The previous prime is 623421537103. The next prime is 623421537157. The reversal of 623421537119 is 911735124326.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623421537119 - 2⁴ = 623421537103 is a prime.

It is a super-2 number, since 2×623421537119² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 623421537119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623421837119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311710768559 + 311710768560.

It is an arithmetic number, because the mean of its divisors is an integer number (311710768560).

Almost surely, 2^623421537119 is an apocalyptic number.

623421537119 is a deficient number, since it is larger than the sum of its proper divisors (1).

623421537119 is an equidigital number, since it uses as much as digits as its factorization.

623421537119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The spelling of 623421537119 in words is "six hundred twenty-three billion, four hundred twenty-one million, five hundred thirty-seven thousand, one hundred nineteen".