139457433623 has 2 divisors, whose sum is σ = 139457433624. Its totient is φ = 139457433622.

The previous prime is 139457433593. The next prime is 139457433641. The reversal of 139457433623 is 326334754931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139457433623 - 2³⁰ = 138383691799 is a prime.

It is a super-2 number, since 2×139457433623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139457433523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69728716811 + 69728716812.

It is an arithmetic number, because the mean of its divisors is an integer number (69728716812).

Almost surely, 2^139457433623 is an apocalyptic number.

139457433623 is a deficient number, since it is larger than the sum of its proper divisors (1).

139457433623 is an equidigital number, since it uses as much as digits as its factorization.

139457433623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 50.

The spelling of 139457433623 in words is "one hundred thirty-nine billion, four hundred fifty-seven million, four hundred thirty-three thousand, six hundred twenty-three".