766642630 has 16 divisors (see below), whose sum is σ = 1486107504. Its totient is φ = 283068000.

The previous prime is 766642619. The next prime is 766642631. The reversal of 766642630 is 36246667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766642631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2948496 + ... + 2948755.

It is an arithmetic number, because the mean of its divisors is an integer number (92881719).

Almost surely, 2^766642630 is an apocalyptic number.

766642630 is a deficient number, since it is larger than the sum of its proper divisors (719464874).

766642630 is a wasteful number, since it uses less digits than its factorization.

766642630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897271.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 766642630 is about 27688.3121551314. The cubic root of 766642630 is about 915.2315617261.

The spelling of 766642630 in words is "seven hundred sixty-six million, six hundred forty-two thousand, six hundred thirty".