82053393779 has 4 divisors (see below), whose sum is σ = 93775307184. Its totient is φ = 70331480376.

The previous prime is 82053393743. The next prime is 82053393781. The reversal of 82053393779 is 97739335028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82053393779 - 2⁸ = 82053393523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82253393779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5860956692 + ... + 5860956705.

It is an arithmetic number, because the mean of its divisors is an integer number (23443826796).

Almost surely, 2^82053393779 is an apocalyptic number.

82053393779 is a deficient number, since it is larger than the sum of its proper divisors (11721913405).

82053393779 is a wasteful number, since it uses less digits than its factorization.

82053393779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721913404.

The product of its (nonzero) digits is 8573040, while the sum is 56.

The spelling of 82053393779 in words is "eighty-two billion, fifty-three million, three hundred ninety-three thousand, seven hundred seventy-nine".