82699955699 has 4 divisors (see below), whose sum is σ = 83934283464. Its totient is φ = 81465627936.

The previous prime is 82699955687. The next prime is 82699955713. The reversal of 82699955699 is 99655999628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82699955699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82699955629) 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 3 ways as a sum of consecutive naturals, for example, 617163782 + ... + 617163915.

It is an arithmetic number, because the mean of its divisors is an integer number (20983570866).

Almost surely, 2^82699955699 is an apocalyptic number.

82699955699 is a deficient number, since it is larger than the sum of its proper divisors (1234327765).

82699955699 is a wasteful number, since it uses less digits than its factorization.

82699955699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234327764.

The product of its digits is 850305600, while the sum is 77.

Adding to 82699955699 its sum of digits (77), we get a square (82699955776 = 287576²).

The spelling of 82699955699 in words is "eighty-two billion, six hundred ninety-nine million, nine hundred fifty-five thousand, six hundred ninety-nine".