64478879010 has 384 divisors, whose sum is σ = 216227612160. Its totient is φ = 13591888128.

The previous prime is 64478878999. The next prime is 64478879011. The reversal of 64478879010 is 1097887446.

It is a happy number.

64478879010 is a `hidden beast` number, since 6 + 4 + 478 + 87 + 90 + 1 + 0 = 666.

64478879010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (64478879011) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 58992024 + ... + 58993116.

It is an arithmetic number, because the mean of its divisors is an integer number (563092740).

Almost surely, 2^64478879010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64478879010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108113806080).

64478879010 is an abundant number, since it is smaller than the sum of its proper divisors (151748733150).

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

64478879010 is a wasteful number, since it uses less digits than its factorization.

64478879010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 64478879010 in words is "sixty-four billion, four hundred seventy-eight million, eight hundred seventy-nine thousand, ten".