77260674384 has 120 divisors (see below), whose sum is σ = 230479165800. Its totient is φ = 24075853824.

The previous prime is 77260674373. The next prime is 77260674391. The reversal of 77260674384 is 48347606277.

It can be written as a sum of positive squares in 4 ways, for example, as 7444238400 + 69816435984 = 86280^2 + 264228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77260674384.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258844 + ... + 470660.

It is an arithmetic number, because the mean of its divisors is an integer number (1920659715).

Almost surely, 2^77260674384 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 77260674384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115239582900).

77260674384 is an abundant number, since it is smaller than the sum of its proper divisors (153218491416).

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

77260674384 is a wasteful number, since it uses less digits than its factorization.

77260674384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211997 (or 211988 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 54.

The spelling of 77260674384 in words is "seventy-seven billion, two hundred sixty million, six hundred seventy-four thousand, three hundred eighty-four".