77874840799 has 24 divisors (see below), whose sum is σ = 91535457888. Its totient is φ = 64899515520.

The previous prime is 77874840781. The next prime is 77874840833. The reversal of 77874840799 is 99704847877.

It is not a de Polignac number, because 77874840799 - 2¹⁵ = 77874808031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77874840739) 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 23 ways as a sum of consecutive naturals, for example, 22815417 + ... + 22818829.

It is an arithmetic number, because the mean of its divisors is an integer number (3813977412).

Almost surely, 2^77874840799 is an apocalyptic number.

77874840799 is a deficient number, since it is larger than the sum of its proper divisors (13660617089).

77874840799 is a wasteful number, since it uses less digits than its factorization.

77874840799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5838 counting only the distinct ones).

The product of its (nonzero) digits is 199148544, while the sum is 70.

The spelling of 77874840799 in words is "seventy-seven billion, eight hundred seventy-four million, eight hundred forty thousand, seven hundred ninety-nine".