77139739851339 has 16 divisors (see below), whose sum is σ = 112542240633984. Its totient is φ = 46610114707200.

The previous prime is 77139739851289. The next prime is 77139739851347. The reversal of 77139739851339 is 93315893793177.

It is not a de Polignac number, because 77139739851339 - 2¹⁶ = 77139739785803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77139739851739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3531058374 + ... + 3531080219.

It is an arithmetic number, because the mean of its divisors is an integer number (7033890039624).

Almost surely, 2^{77139739851339} is an apocalyptic number.

77139739851339 is a deficient number, since it is larger than the sum of its proper divisors (35402500782645).

77139739851339 is a wasteful number, since it uses less digits than its factorization.

77139739851339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7062138938.

The product of its digits is 810152280, while the sum is 75.

The spelling of 77139739851339 in words is "seventy-seven trillion, one hundred thirty-nine billion, seven hundred thirty-nine million, eight hundred fifty-one thousand, three hundred thirty-nine".