264468631878 has 40 divisors (see below), whose sum is σ = 646478882280. Its totient is φ = 80142009120.

The previous prime is 264468631873. The next prime is 264468631907. The reversal of 264468631878 is 878136864462.

264468631878 is a `hidden beast` number, since 2 + 6 + 446 + 8 + 6 + 3 + 187 + 8 = 666.

264468631878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264468631873) 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 19 ways as a sum of consecutive naturals, for example, 74203783 + ... + 74207346.

It is an arithmetic number, because the mean of its divisors is an integer number (16161972057).

Almost surely, 2^264468631878 is an apocalyptic number.

264468631878 is an abundant number, since it is smaller than the sum of its proper divisors (382010250402).

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

264468631878 is a wasteful number, since it uses less digits than its factorization.

264468631878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148411154 (or 148411145 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 63.

The spelling of 264468631878 in words is "two hundred sixty-four billion, four hundred sixty-eight million, six hundred thirty-one thousand, eight hundred seventy-eight".