1791435018090 has 128 divisors (see below), whose sum is σ = 4453021827072. Its totient is φ = 460757928960.

The previous prime is 1791435018053. The next prime is 1791435018091. The reversal of 1791435018090 is 908105341971.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1791435018091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 413056402 + ... + 413060738.

It is an arithmetic number, because the mean of its divisors is an integer number (34789233024).

Almost surely, 2^{1791435018090} is an apocalyptic number.

1791435018090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1791435018090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2226510913536).

1791435018090 is an abundant number, since it is smaller than the sum of its proper divisors (2661586808982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1791435018090 is a wasteful number, since it uses less digits than its factorization.

1791435018090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 1791435018090 in words is "one trillion, seven hundred ninety-one billion, four hundred thirty-five million, eighteen thousand, ninety".