766674244728 has 192 divisors, whose sum is σ = 2516360333760. Its totient is φ = 205858418688.

The previous prime is 766674244723. The next prime is 766674244753. The reversal of 766674244728 is 827442476667.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766674244723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5734450 + ... + 5866622.

It is an arithmetic number, because the mean of its divisors is an integer number (13106043405).

Almost surely, 2^766674244728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 766674244728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258180166880).

766674244728 is an abundant number, since it is smaller than the sum of its proper divisors (1749686089032).

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

766674244728 is a wasteful number, since it uses less digits than its factorization.

766674244728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132886 (or 132879 counting only the distinct ones).

The product of its digits is 151732224, while the sum is 63.

The spelling of 766674244728 in words is "seven hundred sixty-six billion, six hundred seventy-four million, two hundred forty-four thousand, seven hundred twenty-eight".