77679879658382 has 8 divisors (see below), whose sum is σ = 116519916590856. Its totient is φ = 38839907461432.

The previous prime is 77679879658349. The next prime is 77679879658429. The reversal of 77679879658382 is 28385697897677.

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

It is a junction number, because it is equal to n+sod(n) for n = 77679879658291 and 77679879658300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13063673 + ... + 18056004.

It is an arithmetic number, because the mean of its divisors is an integer number (14564989573857).

Almost surely, 2^{77679879658382} is an apocalyptic number.

77679879658382 is a deficient number, since it is larger than the sum of its proper divisors (38840036932474).

77679879658382 is a wasteful number, since it uses less digits than its factorization.

77679879658382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32367762.

The product of its digits is 107540213760, while the sum is 92.

The spelling of 77679879658382 in words is "seventy-seven trillion, six hundred seventy-nine billion, eight hundred seventy-nine million, six hundred fifty-eight thousand, three hundred eighty-two".