96521721912 has 384 divisors, whose sum is σ = 331892121600. Its totient is φ = 24614150400.

The previous prime is 96521721853. The next prime is 96521721949. The reversal of 96521721912 is 21912712569.

96521721912 is a `hidden beast` number, since 96 + 521 + 7 + 21 + 9 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 149183173 + ... + 149183819.

It is an arithmetic number, because the mean of its divisors is an integer number (864302400).

Almost surely, 2^96521721912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 96521721912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165946060800).

96521721912 is an abundant number, since it is smaller than the sum of its proper divisors (235370399688).

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

96521721912 is a wasteful number, since it uses less digits than its factorization.

96521721912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1120 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 96521721912 in words is "ninety-six billion, five hundred twenty-one million, seven hundred twenty-one thousand, nine hundred twelve".