78499477583 has 8 divisors (see below), whose sum is σ = 78837411840. Its totient is φ = 78161622840.

The previous prime is 78499477561. The next prime is 78499477591. The reversal of 78499477583 is 38577499487.

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 78499477583 - 2⁸ = 78499477327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78499477513) 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, 2827178 + ... + 2854808.

It is an arithmetic number, because the mean of its divisors is an integer number (9854676480).

Almost surely, 2^78499477583 is an apocalyptic number.

78499477583 is a deficient number, since it is larger than the sum of its proper divisors (337934257).

78499477583 is a wasteful number, since it uses less digits than its factorization.

78499477583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39757.

The product of its digits is 426746880, while the sum is 71.

The spelling of 78499477583 in words is "seventy-eight billion, four hundred ninety-nine million, four hundred seventy-seven thousand, five hundred eighty-three".