3891252998724 has 192 divisors, whose sum is σ = 11671733391360. Its totient is φ = 980719280640.

The previous prime is 3891252998693. The next prime is 3891252998749. The reversal of 3891252998724 is 4278992521983.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26776539 + ... + 26921469.

It is an arithmetic number, because the mean of its divisors is an integer number (60790278080).

Almost surely, 2^{3891252998724} 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 3891252998724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5835866695680).

3891252998724 is an abundant number, since it is smaller than the sum of its proper divisors (7780480392636).

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

3891252998724 is a wasteful number, since it uses less digits than its factorization.

3891252998724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146050 (or 146048 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 69.

The spelling of 3891252998724 in words is "three trillion, eight hundred ninety-one billion, two hundred fifty-two million, nine hundred ninety-eight thousand, seven hundred twenty-four".