139093893863 has 2 divisors, whose sum is σ = 139093893864. Its totient is φ = 139093893862.

The previous prime is 139093893853. The next prime is 139093893881. The reversal of 139093893863 is 368398390931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139093893863 - 2⁴ = 139093893847 is a prime.

It is a super-2 number, since 2×139093893863² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139093893796 and 139093893805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139093893853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69546946931 + 69546946932.

It is an arithmetic number, because the mean of its divisors is an integer number (69546946932).

Almost surely, 2^139093893863 is an apocalyptic number.

139093893863 is a deficient number, since it is larger than the sum of its proper divisors (1).

139093893863 is an equidigital number, since it uses as much as digits as its factorization.

139093893863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22674816, while the sum is 62.

The spelling of 139093893863 in words is "one hundred thirty-nine billion, ninety-three million, eight hundred ninety-three thousand, eight hundred sixty-three".