77441764848 has 80 divisors (see below), whose sum is σ = 228670530816. Its totient is φ = 22123031040.

The previous prime is 77441764831. The next prime is 77441764849. The reversal of 77441764848 is 84846714477.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 77441764791 and 77441764800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77441764849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3309028 + ... + 3332348.

Almost surely, 2^77441764848 is an apocalyptic number.

It is an amenable number.

77441764848 is an abundant number, since it is smaller than the sum of its proper divisors (151228765968).

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

77441764848 is a wasteful number, since it uses less digits than its factorization.

77441764848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33222 (or 33216 counting only the distinct ones).

The product of its digits is 33718272, while the sum is 60.

The spelling of 77441764848 in words is "seventy-seven billion, four hundred forty-one million, seven hundred sixty-four thousand, eight hundred forty-eight".