83235992261 has 4 divisors (see below), whose sum is σ = 84094095372. Its totient is φ = 82377889152.

The previous prime is 83235992251. The next prime is 83235992291. The reversal of 83235992261 is 16229953238.

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 67740472900 + 15495519361 = 260270^2 + 124481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83235992261 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 (83235992251) 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, 429051410 + ... + 429051603.

It is an arithmetic number, because the mean of its divisors is an integer number (21023523843).

Almost surely, 2^83235992261 is an apocalyptic number.

It is an amenable number.

83235992261 is a deficient number, since it is larger than the sum of its proper divisors (858103111).

83235992261 is an equidigital number, since it uses as much as digits as its factorization.

83235992261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858103110.

The product of its digits is 1399680, while the sum is 50.

The spelling of 83235992261 in words is "eighty-three billion, two hundred thirty-five million, nine hundred ninety-two thousand, two hundred sixty-one".