1868054520 has 128 divisors (see below), whose sum is σ = 6094440000. Its totient is φ = 456155136.

The previous prime is 1868054509. The next prime is 1868054533. The reversal of 1868054520 is 254508681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63106 + ... + 87854.

Almost surely, 2^1868054520 is an apocalyptic number.

1868054520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1868054520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3047220000).

1868054520 is an abundant number, since it is smaller than the sum of its proper divisors (4226385480).

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

1868054520 is a wasteful number, since it uses less digits than its factorization.

1868054520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24817 (or 24813 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1868054520 is about 43220.9962865272. The cubic root of 1868054520 is about 1231.5815731323.

The spelling of 1868054520 in words is "one billion, eight hundred sixty-eight million, fifty-four thousand, five hundred twenty".