1798541919 has 12 divisors (see below), whose sum is σ = 2734625400. Its totient is φ = 1135921104.

The previous prime is 1798541867. The next prime is 1798541933. The reversal of 1798541919 is 9191458971.

1798541919 is a `hidden beast` number, since 1 + 7 + 9 + 8 + 541 + 91 + 9 = 666.

It is not a de Polignac number, because 1798541919 - 2¹⁵ = 1798509151 is a prime.

It is a super-2 number, since 2×1798541919² = 6469506068800405122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798541939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5258724 + ... + 5259065.

It is an arithmetic number, because the mean of its divisors is an integer number (227885450).

Almost surely, 2^1798541919 is an apocalyptic number.

1798541919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1798541919 is a deficient number, since it is larger than the sum of its proper divisors (936083481).

1798541919 is a wasteful number, since it uses less digits than its factorization.

1798541919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517814 (or 10517811 counting only the distinct ones).

The product of its digits is 816480, while the sum is 54.

The square root of 1798541919 is about 42409.2197405234. The cubic root of 1798541919 is about 1216.1118532320. Note that the first 3 decimals are identical.

The spelling of 1798541919 in words is "one billion, seven hundred ninety-eight million, five hundred forty-one thousand, nine hundred nineteen".