64469401488 has 120 divisors (see below), whose sum is σ = 188431064640. Its totient is φ = 20537806080.

The previous prime is 64469401483. The next prime is 64469401523. The reversal of 64469401488 is 88410496446.

64469401488 is a `hidden beast` number, since 64 + 4 + 69 + 40 + 1 + 488 = 666.

It is a super-2 number, since 2×64469401488² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64469401483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4162078 + ... + 4177538.

It is an arithmetic number, because the mean of its divisors is an integer number (1570258872).

Almost surely, 2^64469401488 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 64469401488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94215532320).

64469401488 is an abundant number, since it is smaller than the sum of its proper divisors (123961663152).

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

64469401488 is a wasteful number, since it uses less digits than its factorization.

64469401488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16757 (or 16748 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 64469401488 in words is "sixty-four billion, four hundred sixty-nine million, four hundred one thousand, four hundred eighty-eight".