64231483878 has 48 divisors (see below), whose sum is σ = 142779323232. Its totient is φ = 20856528000.

The previous prime is 64231483873. The next prime is 64231483891. The reversal of 64231483878 is 87838413246.

64231483878 is a `hidden beast` number, since 6 + 423 + 148 + 3 + 8 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64231483871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421983 + ... + 553653.

It is an arithmetic number, because the mean of its divisors is an integer number (2974569234).

Almost surely, 2^64231483878 is an apocalyptic number.

64231483878 is an abundant number, since it is smaller than the sum of its proper divisors (78547839354).

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

64231483878 is a wasteful number, since it uses less digits than its factorization.

64231483878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132381 (or 132378 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 64231483878 in words is "sixty-four billion, two hundred thirty-one million, four hundred eighty-three thousand, eight hundred seventy-eight".