1870758666 has 80 divisors (see below), whose sum is σ = 4872098880. Its totient is φ = 525424320.

The previous prime is 1870758653. The next prime is 1870758667. The reversal of 1870758666 is 6668570781.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1870758667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52926 + ... + 80886.

It is an arithmetic number, because the mean of its divisors is an integer number (60901236).

Almost surely, 2^1870758666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1870758666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2436049440).

1870758666 is an abundant number, since it is smaller than the sum of its proper divisors (3001340214).

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

1870758666 is a wasteful number, since it uses less digits than its factorization.

1870758666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28041 (or 28032 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 1870758666 is about 43252.2677555755. The cubic root of 1870758666 is about 1232.1755548482.

It can be divided in two parts, 1870758 and 666, that added together give a square (1871424 = 1368²).

The spelling of 1870758666 in words is "one billion, eight hundred seventy million, seven hundred fifty-eight thousand, six hundred sixty-six".