83956733929 has 4 divisors (see below), whose sum is σ = 86225834884. Its totient is φ = 81687632976.

The previous prime is 83956733879. The next prime is 83956733933. The reversal of 83956733929 is 92933765938.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64680188329 + 19276545600 = 254323^2 + 138840^2 .

It is a cyclic number.

It is not a de Polignac number, because 83956733929 - 2¹⁵ = 83956701161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83956733989) 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, 1134550422 + ... + 1134550495.

It is an arithmetic number, because the mean of its divisors is an integer number (21556458721).

Almost surely, 2^83956733929 is an apocalyptic number.

It is an amenable number.

83956733929 is a deficient number, since it is larger than the sum of its proper divisors (2269100955).

83956733929 is a wasteful number, since it uses less digits than its factorization.

83956733929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269100954.

The product of its digits is 66134880, while the sum is 64.

The spelling of 83956733929 in words is "eighty-three billion, nine hundred fifty-six million, seven hundred thirty-three thousand, nine hundred twenty-nine".