3991764190596 has 192 divisors, whose sum is σ = 11566547435520. Its totient is φ = 1043353244160.

The previous prime is 3991764190553. The next prime is 3991764190621. The reversal of 3991764190596 is 6950914671993.

It is a self number, because there is not a number n which added to its sum of digits gives 3991764190596.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56070295 + ... + 56141441.

It is an arithmetic number, because the mean of its divisors is an integer number (60242434560).

Almost surely, 2^{3991764190596} 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 3991764190596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5783273717760).

3991764190596 is an abundant number, since it is smaller than the sum of its proper divisors (7574783244924).

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

3991764190596 is a wasteful number, since it uses less digits than its factorization.

3991764190596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71634 (or 71632 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 69.

The spelling of 3991764190596 in words is "three trillion, nine hundred ninety-one billion, seven hundred sixty-four million, one hundred ninety thousand, five hundred ninety-six".