64476373248 has 1080 divisors, whose sum is σ = 243604247040. Its totient is φ = 16860856320.

The previous prime is 64476373237. The next prime is 64476373249. The reversal of 64476373248 is 84237367446.

64476373248 is a `hidden beast` number, since 64 + 476 + 3 + 73 + 2 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 64476373194 and 64476373203.

It is not an unprimeable number, because it can be changed into a prime (64476373249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 724453588 + ... + 724453676.

It is an arithmetic number, because the mean of its divisors is an integer number (225559488).

Almost surely, 2^64476373248 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 64476373248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121802123520).

64476373248 is an abundant number, since it is smaller than the sum of its proper divisors (179127873792).

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

64476373248 is a wasteful number, since it uses less digits than its factorization.

64476373248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 155 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 64476373248 in words is "sixty-four billion, four hundred seventy-six million, three hundred seventy-three thousand, two hundred forty-eight".