1798049974387 has 4 divisors (see below), whose sum is σ = 1856051586496. Its totient is φ = 1740048362280.

The previous prime is 1798049974381. The next prime is 1798049974397. The reversal of 1798049974387 is 7834799408971.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1798049974387 - 2¹¹ = 1798049972339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1798049974381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29000806008 + ... + 29000806069.

It is an arithmetic number, because the mean of its divisors is an integer number (464012896624).

Almost surely, 2^{1798049974387} is an apocalyptic number.

1798049974387 is a deficient number, since it is larger than the sum of its proper divisors (58001612109).

1798049974387 is an equidigital number, since it uses as much as digits as its factorization.

1798049974387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58001612108.

The product of its (nonzero) digits is 768144384, while the sum is 76.

The spelling of 1798049974387 in words is "one trillion, seven hundred ninety-eight billion, forty-nine million, nine hundred seventy-four thousand, three hundred eighty-seven".