139395745954905 has 192 divisors, whose sum is σ = 265667167180800. Its totient is φ = 62201377244160.

The previous prime is 139395745954903. The next prime is 139395745954943. The reversal of 139395745954905 is 509459547593931.

It is not a de Polignac number, because 139395745954905 - 2¹ = 139395745954903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139395745954903) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 119687821 + ... + 120846869.

It is an arithmetic number, because the mean of its divisors is an integer number (1383683162400).

Almost surely, 2^{139395745954905} is an apocalyptic number.

139395745954905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139395745954905 is a deficient number, since it is larger than the sum of its proper divisors (126271421225895).

139395745954905 is a wasteful number, since it uses less digits than its factorization.

139395745954905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159212 (or 1159201 counting only the distinct ones).

The product of its (nonzero) digits is 4133430000, while the sum is 78.

The spelling of 139395745954905 in words is "one hundred thirty-nine trillion, three hundred ninety-five billion, seven hundred forty-five million, nine hundred fifty-four thousand, nine hundred five".