1797387634845 has 96 divisors (see below), whose sum is σ = 3505166645760. Its totient is φ = 844357893120.

The previous prime is 1797387634813. The next prime is 1797387634849. The reversal of 1797387634845 is 5484367837971.

1797387634845 is a `hidden beast` number, since 1 + 7 + 9 + 7 + 3 + 87 + 63 + 484 + 5 = 666.

It is not a de Polignac number, because 1797387634845 - 2⁵ = 1797387634813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797387634849) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4171977 + ... + 4582593.

It is an arithmetic number, because the mean of its divisors is an integer number (36512152560).

Almost surely, 2^{1797387634845} is an apocalyptic number.

1797387634845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1797387634845 is a deficient number, since it is larger than the sum of its proper divisors (1707779010915).

1797387634845 is a wasteful number, since it uses less digits than its factorization.

1797387634845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410915 (or 410912 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 72.

The spelling of 1797387634845 in words is "one trillion, seven hundred ninety-seven billion, three hundred eighty-seven million, six hundred thirty-four thousand, eight hundred forty-five".