21464245303368 has 128 divisors (see below), whose sum is σ = 65173461995520. Its totient is φ = 5750599173120.

The previous prime is 21464245303367. The next prime is 21464245303381. The reversal of 21464245303368 is 86330354246412.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 21464245303368.

It is not an unprimeable number, because it can be changed into a prime (21464245303363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13092246 + ... + 14640197.

It is an arithmetic number, because the mean of its divisors is an integer number (509167671840).

Almost surely, 2^{21464245303368} is an apocalyptic number.

21464245303368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21464245303368 is an abundant number, since it is smaller than the sum of its proper divisors (43709216692152).

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

21464245303368 is a wasteful number, since it uses less digits than its factorization.

21464245303368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27732747 (or 27732743 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 51.

The spelling of 21464245303368 in words is "twenty-one trillion, four hundred sixty-four billion, two hundred forty-five million, three hundred three thousand, three hundred sixty-eight".