82935729721 has 16 divisors (see below), whose sum is σ = 92911492800. Its totient is φ = 73503194688.

The previous prime is 82935729707. The next prime is 82935729769. The reversal of 82935729721 is 12792753928.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82935729721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82935729221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547011 + ... + 681976.

It is an arithmetic number, because the mean of its divisors is an integer number (5806968300).

Almost surely, 2^82935729721 is an apocalyptic number.

It is an amenable number.

82935729721 is a deficient number, since it is larger than the sum of its proper divisors (9975763079).

82935729721 is a wasteful number, since it uses less digits than its factorization.

82935729721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229208.

The product of its digits is 3810240, while the sum is 55.

The spelling of 82935729721 in words is "eighty-two billion, nine hundred thirty-five million, seven hundred twenty-nine thousand, seven hundred twenty-one".