83991151712 has 48 divisors (see below), whose sum is σ = 178483425120. Its totient is φ = 38676759552.

The previous prime is 83991151703. The next prime is 83991151759. The reversal of 83991151712 is 21715119938.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47333 + ... + 412580.

It is an arithmetic number, because the mean of its divisors is an integer number (3718404690).

Almost surely, 2^83991151712 is an apocalyptic number.

It is an amenable number.

83991151712 is an abundant number, since it is smaller than the sum of its proper divisors (94492273408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83991151712 is a wasteful number, since it uses less digits than its factorization.

83991151712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460375 (or 460367 counting only the distinct ones).

The product of its digits is 136080, while the sum is 47.

The spelling of 83991151712 in words is "eighty-three billion, nine hundred ninety-one million, one hundred fifty-one thousand, seven hundred twelve".