21960318481248 has 48 divisors (see below), whose sum is σ = 65880955445760. Its totient is φ = 6274376708736.

The previous prime is 21960318481177. The next prime is 21960318481249. The reversal of 21960318481248 is 84218481306912.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21960318481249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16339522008 + ... + 16339523351.

It is an arithmetic number, because the mean of its divisors is an integer number (1372519905120).

Almost surely, 2^{21960318481248} is an apocalyptic number.

21960318481248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21960318481248 is an abundant number, since it is smaller than the sum of its proper divisors (43920636964512).

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

21960318481248 is a wasteful number, since it uses less digits than its factorization.

21960318481248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32679045379 (or 32679045371 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 57.

The spelling of 21960318481248 in words is "twenty-one trillion, nine hundred sixty billion, three hundred eighteen million, four hundred eighty-one thousand, two hundred forty-eight".