766668038 has 4 divisors (see below), whose sum is σ = 1150002060. Its totient is φ = 383334018.

The previous prime is 766668013. The next prime is 766668101. The reversal of 766668038 is 830866667.

766668038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 830866667 = 311 ⋅2671597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191667008 + ... + 191667011.

It is an arithmetic number, because the mean of its divisors is an integer number (287500515).

Almost surely, 2^766668038 is an apocalyptic number.

766668038 is a deficient number, since it is larger than the sum of its proper divisors (383334022).

766668038 is a wasteful number, since it uses less digits than its factorization.

766668038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383334021.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The square root of 766668038 is about 27688.7709730858. The cubic root of 766668038 is about 915.2416724547.

The spelling of 766668038 in words is "seven hundred sixty-six million, six hundred sixty-eight thousand, thirty-eight".