82045767021 has 8 divisors (see below), whose sum is σ = 109397481984. Its totient is φ = 54695615040.

The previous prime is 82045766981. The next prime is 82045767043. The reversal of 82045767021 is 12076754028.

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

It is not a de Polignac number, because 82045767021 - 2⁷ = 82045766893 is a prime.

It is a super-2 number, since 2×82045767021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82045767821) 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 7 ways as a sum of consecutive naturals, for example, 262221 + ... + 482546.

It is an arithmetic number, because the mean of its divisors is an integer number (13674685248).

Almost surely, 2^82045767021 is an apocalyptic number.

It is an amenable number.

82045767021 is a deficient number, since it is larger than the sum of its proper divisors (27351714963).

82045767021 is a wasteful number, since it uses less digits than its factorization.

82045767021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781491.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 82045767021 in words is "eighty-two billion, forty-five million, seven hundred sixty-seven thousand, twenty-one".