766668488 has 32 divisors (see below), whose sum is σ = 1447891200. Its totient is φ = 380576448.

The previous prime is 766668481. The next prime is 766668491. The reversal of 766668488 is 884866667.

It is a super-2 number, since 2×766668488² = 1175561140984412288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (766668481) 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, 887945 + ... + 888807.

It is an arithmetic number, because the mean of its divisors is an integer number (45246600).

Almost surely, 2^766668488 is an apocalyptic number.

It is an amenable number.

766668488 is a deficient number, since it is larger than the sum of its proper divisors (681222712).

766668488 is a wasteful number, since it uses less digits than its factorization.

766668488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541 (or 1537 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 59.

The square root of 766668488 is about 27688.7790991224. The cubic root of 766668488 is about 915.2418515233.

The spelling of 766668488 in words is "seven hundred sixty-six million, six hundred sixty-eight thousand, four hundred eighty-eight".