1464399390688 has 72 divisors (see below), whose sum is σ = 3129082569648. Its totient is φ = 674314647552.

The previous prime is 1464399390683. The next prime is 1464399390697. The reversal of 1464399390688 is 8860939934641.

It is a super-2 number, since 2×1464399390688² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1464399390683) 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 11 ways as a sum of consecutive naturals, for example, 2028981 + ... + 2654347.

It is an arithmetic number, because the mean of its divisors is an integer number (43459480134).

Almost surely, 2^{1464399390688} 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 1464399390688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564541284824).

1464399390688 is an abundant number, since it is smaller than the sum of its proper divisors (1664683178960).

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

1464399390688 is a wasteful number, since it uses less digits than its factorization.

1464399390688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625836 (or 625815 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 70.

The spelling of 1464399390688 in words is "one trillion, four hundred sixty-four billion, three hundred ninety-nine million, three hundred ninety thousand, six hundred eighty-eight".