181492086373 has 16 divisors (see below), whose sum is σ = 202164109056. Its totient is φ = 161858136960.

The previous prime is 181492086313. The next prime is 181492086379. The reversal of 181492086373 is 373680294181.

It is not a de Polignac number, because 181492086373 - 2¹³ = 181492078181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 181492086373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181492086379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1598065 + ... + 1707862.

It is an arithmetic number, because the mean of its divisors is an integer number (12635256816).

Almost surely, 2^181492086373 is an apocalyptic number.

181492086373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

181492086373 is a deficient number, since it is larger than the sum of its proper divisors (20672022683).

181492086373 is a wasteful number, since it uses less digits than its factorization.

181492086373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306084.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 181492086373 in words is "one hundred eighty-one billion, four hundred ninety-two million, eighty-six thousand, three hundred seventy-three".