83891283527 has 4 divisors (see below), whose sum is σ = 84660928440. Its totient is φ = 83121638616.

The previous prime is 83891283493. The next prime is 83891283557. The reversal of 83891283527 is 72538219838.

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 83891283527 - 2⁸ = 83891283271 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 (83891283557) 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, 384822293 + ... + 384822510.

It is an arithmetic number, because the mean of its divisors is an integer number (21165232110).

Almost surely, 2^83891283527 is an apocalyptic number.

83891283527 is a deficient number, since it is larger than the sum of its proper divisors (769644913).

83891283527 is a wasteful number, since it uses less digits than its factorization.

83891283527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769644912.

The product of its digits is 5806080, while the sum is 56.

The spelling of 83891283527 in words is "eighty-three billion, eight hundred ninety-one million, two hundred eighty-three thousand, five hundred twenty-seven".