1826081172 has 60 divisors (see below), whose sum is σ = 4884791296. Its totient is φ = 594533520.

The previous prime is 1826081161. The next prime is 1826081189. The reversal of 1826081172 is 2711806281.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51604 + ... + 79467.

Almost surely, 2^1826081172 is an apocalyptic number.

1826081172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1826081172 is an abundant number, since it is smaller than the sum of its proper divisors (3058710124).

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

1826081172 is a wasteful number, since it uses less digits than its factorization.

1826081172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131130 (or 131119 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 1826081172 is about 42732.6710141082. The cubic root of 1826081172 is about 1222.2874695465.

The spelling of 1826081172 in words is "one billion, eight hundred twenty-six million, eighty-one thousand, one hundred seventy-two".