3794381340021 has 16 divisors (see below), whose sum is σ = 5628912356800. Its totient is φ = 2526164559504.

The previous prime is 3794381339993. The next prime is 3794381340047. The reversal of 3794381340021 is 1200431834973.

It is not a de Polignac number, because 3794381340021 - 2²⁶ = 3794314231157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3794381340521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95063026 + ... + 95102931.

It is an arithmetic number, because the mean of its divisors is an integer number (351807022300).

Almost surely, 2^{3794381340021} is an apocalyptic number.

It is an amenable number.

3794381340021 is a deficient number, since it is larger than the sum of its proper divisors (1834531016779).

3794381340021 is a wasteful number, since it uses less digits than its factorization.

3794381340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190166705 (or 190166699 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 3794381340021 in words is "three trillion, seven hundred ninety-four billion, three hundred eighty-one million, three hundred forty thousand, twenty-one".