83988645829 has 16 divisors (see below), whose sum is σ = 95056701120. Its totient is φ = 73507893760.

The previous prime is 83988645823. The next prime is 83988645859. The reversal of 83988645829 is 92854688938.

It is a cyclic number.

It is not a de Polignac number, because 83988645829 - 2³ = 83988645821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83988645821) 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, 268684 + ... + 490069.

It is an arithmetic number, because the mean of its divisors is an integer number (5941043820).

Almost surely, 2^83988645829 is an apocalyptic number.

It is an amenable number.

83988645829 is a deficient number, since it is larger than the sum of its proper divisors (11068055291).

83988645829 is a wasteful number, since it uses less digits than its factorization.

83988645829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759140.

The product of its digits is 238878720, while the sum is 70.

The spelling of 83988645829 in words is "eighty-three billion, nine hundred eighty-eight million, six hundred forty-five thousand, eight hundred twenty-nine".