82949363721 has 24 divisors (see below), whose sum is σ = 139253175360. Its totient is φ = 46596250656.

The previous prime is 82949363719. The next prime is 82949363837. The reversal of 82949363721 is 12736394928.

82949363721 is a `hidden beast` number, since 8 + 29 + 493 + 63 + 72 + 1 = 666.

It is not a de Polignac number, because 82949363721 - 2¹ = 82949363719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82949363521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11154390 + ... + 11161823.

It is an arithmetic number, because the mean of its divisors is an integer number (5802215640).

Almost surely, 2^82949363721 is an apocalyptic number.

It is an amenable number.

82949363721 is a deficient number, since it is larger than the sum of its proper divisors (56303811639).

82949363721 is a wasteful number, since it uses less digits than its factorization.

82949363721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22316285 (or 22316282 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 82949363721 in words is "eighty-two billion, nine hundred forty-nine million, three hundred sixty-three thousand, seven hundred twenty-one".