3798661398774 has 16 divisors (see below), whose sum is σ = 8287988506560. Its totient is φ = 1151109514760.

The previous prime is 3798661398761. The next prime is 3798661398811. The reversal of 3798661398774 is 4778931668973.

It is a self number, because there is not a number n which added to its sum of digits gives 3798661398774.

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, 28777737804 + ... + 28777737935.

It is an arithmetic number, because the mean of its divisors is an integer number (517999281660).

Almost surely, 2^{3798661398774} is an apocalyptic number.

3798661398774 is an abundant number, since it is smaller than the sum of its proper divisors (4489327107786).

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

3798661398774 is a wasteful number, since it uses less digits than its factorization.

3798661398774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57555475755.

The product of its digits is 2304433152, while the sum is 78.

The spelling of 3798661398774 in words is "three trillion, seven hundred ninety-eight billion, six hundred sixty-one million, three hundred ninety-eight thousand, seven hundred seventy-four".