82750221534 has 8 divisors (see below), whose sum is σ = 165500443080. Its totient is φ = 27583407176.

The previous prime is 82750221509. The next prime is 82750221539. The reversal of 82750221534 is 43512205728.

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

82750221534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 82750221492 and 82750221501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82750221539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6895851789 + ... + 6895851800.

It is an arithmetic number, because the mean of its divisors is an integer number (20687555385).

Almost surely, 2^82750221534 is an apocalyptic number.

82750221534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82750221534 is a wasteful number, since it uses less digits than its factorization.

82750221534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13791703594.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 82750221534 in words is "eighty-two billion, seven hundred fifty million, two hundred twenty-one thousand, five hundred thirty-four".