83390235077 has 4 divisors (see below), whose sum is σ = 83390814156. Its totient is φ = 83389656000.

The previous prime is 83390235053. The next prime is 83390235107. The reversal of 83390235077 is 77053209338.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 38435210401 + 44955024676 = 196049^2 + 212026^2 .

It is a cyclic number.

It is not a de Polignac number, because 83390235077 - 2²⁶ = 83323126213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83390231077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113213 + ... + 423789.

It is an arithmetic number, because the mean of its divisors is an integer number (20847703539).

Almost surely, 2^83390235077 is an apocalyptic number.

It is an amenable number.

83390235077 is a deficient number, since it is larger than the sum of its proper divisors (579079).

83390235077 is a wasteful number, since it uses less digits than its factorization.

83390235077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579078.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 83390235077 in words is "eighty-three billion, three hundred ninety million, two hundred thirty-five thousand, seventy-seven".