1868825580 has 192 divisors, whose sum is σ = 5556418560. Its totient is φ = 468808704.

The previous prime is 1868825461. The next prime is 1868825597. The reversal of 1868825580 is 855288681.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10802374 + ... + 10802546.

It is an arithmetic number, because the mean of its divisors is an integer number (28939680).

Almost surely, 2^1868825580 is an apocalyptic number.

1868825580 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 1868825580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2778209280).

1868825580 is an abundant number, since it is smaller than the sum of its proper divisors (3687592980).

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

1868825580 is a wasteful number, since it uses less digits than its factorization.

1868825580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 51.

The square root of 1868825580 is about 43229.9153364889. The cubic root of 1868825580 is about 1231.7509994261.

The spelling of 1868825580 in words is "one billion, eight hundred sixty-eight million, eight hundred twenty-five thousand, five hundred eighty".