77959613995 has 8 divisors (see below), whose sum is σ = 93580965360. Its totient is φ = 62348072160.

The previous prime is 77959613993. The next prime is 77959614013. The reversal of 77959613995 is 59931695977.

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

It is not a de Polignac number, because 77959613995 - 2¹ = 77959613993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77959613993) 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, 2434885 + ... + 2466694.

It is an arithmetic number, because the mean of its divisors is an integer number (11697620670).

Almost surely, 2^77959613995 is an apocalyptic number.

77959613995 is a deficient number, since it is larger than the sum of its proper divisors (15621351365).

77959613995 is a wasteful number, since it uses less digits than its factorization.

77959613995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904765.

The product of its digits is 144670050, while the sum is 70.

The spelling of 77959613995 in words is "seventy-seven billion, nine hundred fifty-nine million, six hundred thirteen thousand, nine hundred ninety-five".