766561014 has 48 divisors (see below), whose sum is σ = 1712060064. Its totient is φ = 247766400.

The previous prime is 766561009. The next prime is 766561021. The reversal of 766561014 is 410165667.

It is a self number, because there is not a number n which added to its sum of digits gives 766561014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73042 + ... + 82874.

It is an arithmetic number, because the mean of its divisors is an integer number (35667918).

Almost surely, 2^766561014 is an apocalyptic number.

766561014 is an abundant number, since it is smaller than the sum of its proper divisors (945499050).

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

766561014 is a wasteful number, since it uses less digits than its factorization.

766561014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9973 (or 9970 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 766561014 is about 27686.8382810317. The cubic root of 766561014 is about 915.1990823643.

The spelling of 766561014 in words is "seven hundred sixty-six million, five hundred sixty-one thousand, fourteen".