766453321860 has 96 divisors (see below), whose sum is σ = 2198775196800. Its totient is φ = 199369589760.

The previous prime is 766453321849. The next prime is 766453321877. The reversal of 766453321860 is 68123354667.

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, 17244546 + ... + 17288934.

It is an arithmetic number, because the mean of its divisors is an integer number (22903908300).

Almost surely, 2^766453321860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 766453321860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099387598400).

766453321860 is an abundant number, since it is smaller than the sum of its proper divisors (1432321874940).

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

766453321860 is a wasteful number, since it uses less digits than its factorization.

766453321860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51461 (or 51459 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 766453321860 in words is "seven hundred sixty-six billion, four hundred fifty-three million, three hundred twenty-one thousand, eight hundred sixty".