77748464304 has 240 divisors, whose sum is σ = 261153285120. Its totient is φ = 21932052480.

The previous prime is 77748464263. The next prime is 77748464323. The reversal of 77748464304 is 40346484777.

It is a happy number.

77748464304 is a `hidden beast` number, since 7 + 77 + 484 + 64 + 30 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2131984 + ... + 2168144.

It is an arithmetic number, because the mean of its divisors is an integer number (1088138688).

Almost surely, 2^77748464304 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 77748464304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130576642560).

77748464304 is an abundant number, since it is smaller than the sum of its proper divisors (183404820816).

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

77748464304 is a wasteful number, since it uses less digits than its factorization.

77748464304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36270 (or 36252 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 54.

The spelling of 77748464304 in words is "seventy-seven billion, seven hundred forty-eight million, four hundred sixty-four thousand, three hundred four".