64394196480 has 400 divisors, whose sum is σ = 231490054224. Its totient is φ = 17108582400.

The previous prime is 64394196413. The next prime is 64394196491. The reversal of 64394196480 is 8469149346.

It is a happy number.

64394196480 is a `hidden beast` number, since 6 + 4 + 39 + 41 + 96 + 480 = 666.

64394196480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64394196480² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91860130 + ... + 91860830.

Almost surely, 2^64394196480 is an apocalyptic number.

64394196480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64394196480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115745027112).

64394196480 is an abundant number, since it is smaller than the sum of its proper divisors (167095857744).

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

64394196480 is an equidigital number, since it uses as much as digits as its factorization.

64394196480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 64394196480 in words is "sixty-four billion, three hundred ninety-four million, one hundred ninety-six thousand, four hundred eighty".