3791820598781 has 8 divisors (see below), whose sum is σ = 4036237185600. Its totient is φ = 3551888720160.

The previous prime is 3791820598777. The next prime is 3791820598829. The reversal of 3791820598781 is 1878950281973.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3791820598781 - 2² = 3791820598777 is a prime.

It is a super-2 number, since 2×3791820598781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3791820598981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121175305 + ... + 1121178686.

It is an arithmetic number, because the mean of its divisors is an integer number (504529648200).

Almost surely, 2^{3791820598781} is an apocalyptic number.

It is an amenable number.

3791820598781 is a deficient number, since it is larger than the sum of its proper divisors (244416586819).

3791820598781 is a wasteful number, since it uses less digits than its factorization.

3791820598781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242354099.

The product of its (nonzero) digits is 60963840, while the sum is 68.

The spelling of 3791820598781 in words is "three trillion, seven hundred ninety-one billion, eight hundred twenty million, five hundred ninety-eight thousand, seven hundred eighty-one".