1538716948739 has 2 divisors, whose sum is σ = 1538716948740. Its totient is φ = 1538716948738.

The previous prime is 1538716948649. The next prime is 1538716948751. The reversal of 1538716948739 is 9378496178351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1538716948739 - 2²⁴ = 1538700171523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1538716948789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769358474369 + 769358474370.

It is an arithmetic number, because the mean of its divisors is an integer number (769358474370).

Almost surely, 2^{1538716948739} is an apocalyptic number.

1538716948739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538716948739 is an equidigital number, since it uses as much as digits as its factorization.

1538716948739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274337280, while the sum is 71.

The spelling of 1538716948739 in words is "one trillion, five hundred thirty-eight billion, seven hundred sixteen million, nine hundred forty-eight thousand, seven hundred thirty-nine".