1918030329856 has 48 divisors (see below), whose sum is σ = 3847456987920. Its totient is φ = 955931197440.

The previous prime is 1918030329799. The next prime is 1918030329863. The reversal of 1918030329856 is 6589230308191.

It is a junction number, because it is equal to n+sod(n) for n = 1918030329797 and 1918030329806.

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, 868761 + ... + 2142616.

It is an arithmetic number, because the mean of its divisors is an integer number (80155353915).

Almost surely, 2^{1918030329856} is an apocalyptic number.

1918030329856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1918030329856 is an abundant number, since it is smaller than the sum of its proper divisors (1929426658064).

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

1918030329856 is an equidigital number, since it uses as much as digits as its factorization.

1918030329856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011710 (or 3011690 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 1918030329856 in words is "one trillion, nine hundred eighteen billion, thirty million, three hundred twenty-nine thousand, eight hundred fifty-six".