1881912468 has 24 divisors (see below), whose sum is σ = 4431417760. Its totient is φ = 621548640.

The previous prime is 1881912451. The next prime is 1881912493. The reversal of 1881912468 is 8642191881.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718078 + ... + 720693.

Almost surely, 2^1881912468 is an apocalyptic number.

It is an amenable number.

1881912468 is an abundant number, since it is smaller than the sum of its proper divisors (2549505292).

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

1881912468 is a wasteful number, since it uses less digits than its factorization.

1881912468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438887 (or 1438885 counting only the distinct ones).

The product of its digits is 221184, while the sum is 48.

The square root of 1881912468 is about 43381.0150641960. The cubic root of 1881912468 is about 1234.6195220829.

The spelling of 1881912468 in words is "one billion, eight hundred eighty-one million, nine hundred twelve thousand, four hundred sixty-eight".