83351851997 has 8 divisors (see below), whose sum is σ = 87031908000. Its totient is φ = 79725519664.

The previous prime is 83351851937. The next prime is 83351852141. The reversal of 83351851997 is 79915815338.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83351851997 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 (83351851937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13427747 + ... + 13433952.

It is an arithmetic number, because the mean of its divisors is an integer number (10878988500).

Almost surely, 2^83351851997 is an apocalyptic number.

It is an amenable number.

83351851997 is a deficient number, since it is larger than the sum of its proper divisors (3680056003).

83351851997 is a wasteful number, since it uses less digits than its factorization.

83351851997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26861835.

The product of its digits is 8164800, while the sum is 59.

The spelling of 83351851997 in words is "eighty-three billion, three hundred fifty-one million, eight hundred fifty-one thousand, nine hundred ninety-seven".