77829575923 has 8 divisors (see below), whose sum is σ = 85126680576. Its totient is φ = 70569419400.

The previous prime is 77829575909. The next prime is 77829575947. The reversal of 77829575923 is 32957592877.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77829575923 - 2¹³ = 77829567731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77829575323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9232623 + ... + 9241048.

It is an arithmetic number, because the mean of its divisors is an integer number (10640835072).

Almost surely, 2^77829575923 is an apocalyptic number.

77829575923 is a deficient number, since it is larger than the sum of its proper divisors (7297104653).

77829575923 is a wasteful number, since it uses less digits than its factorization.

77829575923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18474065.

The product of its digits is 66679200, while the sum is 64.

The spelling of 77829575923 in words is "seventy-seven billion, eight hundred twenty-nine million, five hundred seventy-five thousand, nine hundred twenty-three".