76513539139 has 2 divisors, whose sum is σ = 76513539140. Its totient is φ = 76513539138.

The previous prime is 76513539119. The next prime is 76513539197. The reversal of 76513539139 is 93193531567.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76513539139 - 2⁹ = 76513538627 is a prime.

It is a super-2 number, since 2×76513539139² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76513539119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38256769569 + 38256769570.

It is an arithmetic number, because the mean of its divisors is an integer number (38256769570).

Almost surely, 2^76513539139 is an apocalyptic number.

76513539139 is a deficient number, since it is larger than the sum of its proper divisors (1).

76513539139 is an equidigital number, since it uses as much as digits as its factorization.

76513539139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 52.

The spelling of 76513539139 in words is "seventy-six billion, five hundred thirteen million, five hundred thirty-nine thousand, one hundred thirty-nine".