82939744899 has 48 divisors (see below), whose sum is σ = 134314252800. Its totient is φ = 48875503680.

The previous prime is 82939744799. The next prime is 82939744913. The reversal of 82939744899 is 99844793928.

82939744899 is a `hidden beast` number, since 8 + 2 + 9 + 3 + 97 + 448 + 99 = 666.

It is not a de Polignac number, because 82939744899 - 2⁹ = 82939744387 is a prime.

It is a super-2 number, since 2×82939744899² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82939744799) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6216774 + ... + 6230100.

It is an arithmetic number, because the mean of its divisors is an integer number (2798213600).

Almost surely, 2^82939744899 is an apocalyptic number.

82939744899 is a deficient number, since it is larger than the sum of its proper divisors (51374507901).

82939744899 is a wasteful number, since it uses less digits than its factorization.

82939744899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15080 (or 15077 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 72.

The spelling of 82939744899 in words is "eighty-two billion, nine hundred thirty-nine million, seven hundred forty-four thousand, eight hundred ninety-nine".