82757236389 has 4 divisors (see below), whose sum is σ = 110342981856. Its totient is φ = 55171490924.

The previous prime is 82757236381. The next prime is 82757236439. The reversal of 82757236389 is 98363275728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82757236389 - 2³ = 82757236381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82757236381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13792872729 + ... + 13792872734.

It is an arithmetic number, because the mean of its divisors is an integer number (27585745464).

Almost surely, 2^82757236389 is an apocalyptic number.

It is an amenable number.

82757236389 is a deficient number, since it is larger than the sum of its proper divisors (27585745467).

82757236389 is a wasteful number, since it uses less digits than its factorization.

82757236389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27585745466.

The product of its digits is 30481920, while the sum is 60.

The spelling of 82757236389 in words is "eighty-two billion, seven hundred fifty-seven million, two hundred thirty-six thousand, three hundred eighty-nine".