139736099625049 has 2 divisors, whose sum is σ = 139736099625050. Its totient is φ = 139736099625048.

The previous prime is 139736099625011. The next prime is 139736099625139. The reversal of 139736099625049 is 940526990637931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133289172378649 + 6446927246400 = 11545093^2 + 2539080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139736099625049 is a prime.

It is not a weakly prime, because it can be changed into another prime (139736099625149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69868049812524 + 69868049812525.

It is an arithmetic number, because the mean of its divisors is an integer number (69868049812525).

Almost surely, 2^{139736099625049} is an apocalyptic number.

It is an amenable number.

139736099625049 is a deficient number, since it is larger than the sum of its proper divisors (1).

139736099625049 is an equidigital number, since it uses as much as digits as its factorization.

139736099625049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 595213920, while the sum is 73.

The spelling of 139736099625049 in words is "one hundred thirty-nine trillion, seven hundred thirty-six billion, ninety-nine million, six hundred twenty-five thousand, forty-nine".