182919181820 has 12 divisors (see below), whose sum is σ = 384130281864. Its totient is φ = 73167672720.

The previous prime is 182919181787. The next prime is 182919181849. The reversal of 182919181820 is 28181919281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4572979526 + ... + 4572979565.

It is an arithmetic number, because the mean of its divisors is an integer number (32010856822).

Almost surely, 2^182919181820 is an apocalyptic number.

182919181820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

182919181820 is an abundant number, since it is smaller than the sum of its proper divisors (201211100044).

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

182919181820 is a wasteful number, since it uses less digits than its factorization.

182919181820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9145959100 (or 9145959098 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 50.

The spelling of 182919181820 in words is "one hundred eighty-two billion, nine hundred nineteen million, one hundred eighty-one thousand, eight hundred twenty".