77070612729 has 16 divisors (see below), whose sum is σ = 112920984000. Its totient is φ = 46368514560.

The previous prime is 77070612713. The next prime is 77070612739. The reversal of 77070612729 is 92721607077.

It is not a de Polignac number, because 77070612729 - 2⁴ = 77070612713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77070612739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8519104 + ... + 8528145.

It is an arithmetic number, because the mean of its divisors is an integer number (7057561500).

Almost surely, 2^77070612729 is an apocalyptic number.

It is an amenable number.

77070612729 is a deficient number, since it is larger than the sum of its proper divisors (35850371271).

77070612729 is a wasteful number, since it uses less digits than its factorization.

77070612729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17047400.

The product of its (nonzero) digits is 518616, while the sum is 48.

The spelling of 77070612729 in words is "seventy-seven billion, seventy million, six hundred twelve thousand, seven hundred twenty-nine".