76727713529 has 4 divisors (see below), whose sum is σ = 76863997776. Its totient is φ = 76591429284.

The previous prime is 76727713501. The next prime is 76727713541. The reversal of 76727713529 is 92531772767.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92531772767 = 7 ⋅13218824681.

It is a cyclic number.

It is not a de Polignac number, because 76727713529 - 2¹² = 76727709433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76727713429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68141279 + ... + 68142404.

It is an arithmetic number, because the mean of its divisors is an integer number (19215999444).

Almost surely, 2^76727713529 is an apocalyptic number.

It is an amenable number.

76727713529 is a deficient number, since it is larger than the sum of its proper divisors (136284247).

76727713529 is a wasteful number, since it uses less digits than its factorization.

76727713529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136284246.

The product of its digits is 7779240, while the sum is 56.

The spelling of 76727713529 in words is "seventy-six billion, seven hundred twenty-seven million, seven hundred thirteen thousand, five hundred twenty-nine".