83260385891 has 4 divisors (see below), whose sum is σ = 83868126072. Its totient is φ = 82652645712.

The previous prime is 83260385851. The next prime is 83260385921. The reversal of 83260385891 is 19858306238.

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

It is a cyclic number.

It is not a de Polignac number, because 83260385891 - 2¹⁸ = 83260123747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83260385851) 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, 303869885 + ... + 303870158.

It is an arithmetic number, because the mean of its divisors is an integer number (20967031518).

Almost surely, 2^83260385891 is an apocalyptic number.

83260385891 is a deficient number, since it is larger than the sum of its proper divisors (607740181).

83260385891 is a wasteful number, since it uses less digits than its factorization.

83260385891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607740180.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 83260385891 in words is "eighty-three billion, two hundred sixty million, three hundred eighty-five thousand, eight hundred ninety-one".