766478044 has 6 divisors (see below), whose sum is σ = 1341336584. Its totient is φ = 383239020.

The previous prime is 766478039. The next prime is 766478047. The reversal of 766478044 is 440874667.

It is a junction number, because it is equal to n+sod(n) for n = 766477985 and 766478003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766478047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95809752 + ... + 95809759.

Almost surely, 2^766478044 is an apocalyptic number.

It is an amenable number.

766478044 is a deficient number, since it is larger than the sum of its proper divisors (574858540).

766478044 is a wasteful number, since it uses less digits than its factorization.

766478044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191619515 (or 191619513 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The square root of 766478044 is about 27685.3398751036. The cubic root of 766478044 is about 915.1660618105.

The spelling of 766478044 in words is "seven hundred sixty-six million, four hundred seventy-eight thousand, forty-four".