766770980 has 48 divisors (see below), whose sum is σ = 1658180160. Its totient is φ = 297618048.

The previous prime is 766770937. The next prime is 766771001. The reversal of 766770980 is 89077667.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326651 + ... + 328989.

It is an arithmetic number, because the mean of its divisors is an integer number (34545420).

Almost surely, 2^766770980 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 766770980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829090080).

766770980 is an abundant number, since it is smaller than the sum of its proper divisors (891409180).

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

766770980 is a wasteful number, since it uses less digits than its factorization.

766770980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 766770980 is about 27690.6298231008. The cubic root of 766770980 is about 915.2826343778.

The spelling of 766770980 in words is "seven hundred sixty-six million, seven hundred seventy thousand, nine hundred eighty".