77913241329 has 32 divisors (see below), whose sum is σ = 129570822144. Its totient is φ = 40457940480.

The previous prime is 77913241327. The next prime is 77913241363. The reversal of 77913241329 is 92314231977.

It is not a de Polignac number, because 77913241329 - 2¹ = 77913241327 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77913241327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510817 + ... + 645569.

It is an arithmetic number, because the mean of its divisors is an integer number (4049088192).

Almost surely, 2^77913241329 is an apocalyptic number.

It is an amenable number.

77913241329 is a deficient number, since it is larger than the sum of its proper divisors (51657580815).

77913241329 is a wasteful number, since it uses less digits than its factorization.

77913241329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137277.

The product of its digits is 571536, while the sum is 48.

The spelling of 77913241329 in words is "seventy-seven billion, nine hundred thirteen million, two hundred forty-one thousand, three hundred twenty-nine".