78576537713 has 8 divisors (see below), whose sum is σ = 81188620800. Its totient is φ = 75969289440.

The previous prime is 78576537701. The next prime is 78576537719. The reversal of 78576537713 is 31773567587.

It is a happy number.

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

It is not a de Polignac number, because 78576537713 - 2²⁴ = 78559760497 is a prime.

It is a super-2 number, since 2×78576537713² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78576537719) 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, 1175645 + ... + 1240682.

It is an arithmetic number, because the mean of its divisors is an integer number (10148577600).

Almost surely, 2^78576537713 is an apocalyptic number.

It is an amenable number.

78576537713 is a deficient number, since it is larger than the sum of its proper divisors (2612083087).

78576537713 is a wasteful number, since it uses less digits than its factorization.

78576537713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417407.

The product of its digits is 25930800, while the sum is 59.

The spelling of 78576537713 in words is "seventy-eight billion, five hundred seventy-six million, five hundred thirty-seven thousand, seven hundred thirteen".