77964236748 has 48 divisors (see below), whose sum is σ = 202144552960. Its totient is φ = 25986143952.

The previous prime is 77964236747. The next prime is 77964236797. The reversal of 77964236748 is 84763246977.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77964236747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2822661 + ... + 2850147.

Almost surely, 2^77964236748 is an apocalyptic number.

It is an amenable number.

77964236748 is an abundant number, since it is smaller than the sum of its proper divisors (124180316212).

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

77964236748 is a wasteful number, since it uses less digits than its factorization.

77964236748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53763 (or 53755 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 63.

The spelling of 77964236748 in words is "seventy-seven billion, nine hundred sixty-four million, two hundred thirty-six thousand, seven hundred forty-eight".