3902197911648 has 96 divisors (see below), whose sum is σ = 10413312692832. Its totient is φ = 1279148544000.

The previous prime is 3902197911613. The next prime is 3902197911653. The reversal of 3902197911648 is 8461197912093.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 3902197911591 and 3902197911600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29806140 + ... + 29936772.

It is an arithmetic number, because the mean of its divisors is an integer number (108472007217).

Almost surely, 2^{3902197911648} 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 3902197911648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5206656346416).

3902197911648 is an abundant number, since it is smaller than the sum of its proper divisors (6511114781184).

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

3902197911648 is a wasteful number, since it uses less digits than its factorization.

3902197911648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135808 (or 135800 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 3902197911648 in words is "three trillion, nine hundred two billion, one hundred ninety-seven million, nine hundred eleven thousand, six hundred forty-eight".