82779163326 has 32 divisors (see below), whose sum is σ = 184906847520. Its totient is φ = 27450081792.

The previous prime is 82779163319. The next prime is 82779163331. The reversal of 82779163326 is 62336197728.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3960945 + ... + 3981788.

It is an arithmetic number, because the mean of its divisors is an integer number (5778338985).

Almost surely, 2^82779163326 is an apocalyptic number.

82779163326 is an abundant number, since it is smaller than the sum of its proper divisors (102127684194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82779163326 is a wasteful number, since it uses less digits than its factorization.

82779163326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7942937 (or 7942931 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 82779163326 in words is "eighty-two billion, seven hundred seventy-nine million, one hundred sixty-three thousand, three hundred twenty-six".