64478524092 has 12 divisors (see below), whose sum is σ = 150449889576. Its totient is φ = 21492841360.

The previous prime is 64478524039. The next prime is 64478524181. The reversal of 64478524092 is 29042587446.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 2686605159 + ... + 2686605182.

It is an arithmetic number, because the mean of its divisors is an integer number (12537490798).

Almost surely, 2^64478524092 is an apocalyptic number.

It is an amenable number.

64478524092 is an abundant number, since it is smaller than the sum of its proper divisors (85971365484).

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

64478524092 is a wasteful number, since it uses less digits than its factorization.

64478524092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373210348 (or 5373210346 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 64478524092 in words is "sixty-four billion, four hundred seventy-eight million, five hundred twenty-four thousand, ninety-two".