83234399391 has 96 divisors (see below), whose sum is σ = 145928240640. Its totient is φ = 46480262400.

The previous prime is 83234399351. The next prime is 83234399407. The reversal of 83234399391 is 19399343238.

83234399391 is a `hidden beast` number, since 8 + 32 + 3 + 439 + 93 + 91 = 666.

It is not a de Polignac number, because 83234399391 - 2¹⁰ = 83234398367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83234399351) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36489171 + ... + 36491451.

It is an arithmetic number, because the mean of its divisors is an integer number (1520085840).

Almost surely, 2^83234399391 is an apocalyptic number.

83234399391 is a deficient number, since it is larger than the sum of its proper divisors (62693841249).

83234399391 is a wasteful number, since it uses less digits than its factorization.

83234399391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054 (or 3035 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The spelling of 83234399391 in words is "eighty-three billion, two hundred thirty-four million, three hundred ninety-nine thousand, three hundred ninety-one".