64969443000 has 1152 divisors, whose sum is σ = 284643590400. Its totient is φ = 13212864000.

The previous prime is 64969442983. The next prime is 64969443013. The reversal of 64969443000 is 34496946.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 287 ways as a sum of consecutive naturals, for example, 286208887 + ... + 286209113.

It is an arithmetic number, because the mean of its divisors is an integer number (247086450).

Almost surely, 2^64969443000 is an apocalyptic number.

64969443000 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 64969443000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142321795200).

64969443000 is an abundant number, since it is smaller than the sum of its proper divisors (219674147400).

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

64969443000 is a wasteful number, since it uses less digits than its factorization.

64969443000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 64969443000 in words is "sixty-four billion, nine hundred sixty-nine million, four hundred forty-three thousand".