1819379636797 has 8 divisors (see below), whose sum is σ = 1864025376192. Its totient is φ = 1775262249600.

The previous prime is 1819379636759. The next prime is 1819379636819. The reversal of 1819379636797 is 7976369739181.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1819379636797 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 (1819379636497) 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, 132081079 + ... + 132094852.

It is an arithmetic number, because the mean of its divisors is an integer number (233003172024).

Almost surely, 2^{1819379636797} is an apocalyptic number.

It is an amenable number.

1819379636797 is a deficient number, since it is larger than the sum of its proper divisors (44645739395).

1819379636797 is an equidigital number, since it uses as much as digits as its factorization.

1819379636797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264176099.

The product of its digits is 648121824, while the sum is 76.

The spelling of 1819379636797 in words is "one trillion, eight hundred nineteen billion, three hundred seventy-nine million, six hundred thirty-six thousand, seven hundred ninety-seven".