1239725399139 has 24 divisors (see below), whose sum is σ = 1820874416400. Its totient is φ = 812575592640.

The previous prime is 1239725399093. The next prime is 1239725399167. The reversal of 1239725399139 is 9319935279321.

1239725399139 is a `hidden beast` number, since 1 + 2 + 3 + 9 + 7 + 2 + 539 + 91 + 3 + 9 = 666.

It is not a de Polignac number, because 1239725399139 - 2¹¹ = 1239725397091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1239725399839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 748072 + ... + 1743290.

It is an arithmetic number, because the mean of its divisors is an integer number (75869767350).

Almost surely, 2^{1239725399139} is an apocalyptic number.

1239725399139 is a deficient number, since it is larger than the sum of its proper divisors (581149017261).

1239725399139 is a wasteful number, since it uses less digits than its factorization.

1239725399139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997555 (or 997552 counting only the distinct ones).

The product of its digits is 24800580, while the sum is 63.

The spelling of 1239725399139 in words is "one trillion, two hundred thirty-nine billion, seven hundred twenty-five million, three hundred ninety-nine thousand, one hundred thirty-nine".