21492462862080 has 1440 divisors, whose sum is σ = 89030941655040. Its totient is φ = 4849238016000.

The previous prime is 21492462862069. The next prime is 21492462862097. The reversal of 21492462862080 is 8026826429412.

21492462862080 is a `hidden beast` number, since 2 + 1 + 4 + 9 + 2 + 4 + 6 + 2 + 8 + 620 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 23135051056 + ... + 23135051984.

It is an arithmetic number, because the mean of its divisors is an integer number (61827042816).

Almost surely, 2^{21492462862080} is an apocalyptic number.

21492462862080 is a gapful number since it is divisible by the number (20) 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 21492462862080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44515470827520).

21492462862080 is an abundant number, since it is smaller than the sum of its proper divisors (67538478792960).

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

21492462862080 is a wasteful number, since it uses less digits than its factorization.

21492462862080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1324 counting only the distinct ones).

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

The spelling of 21492462862080 in words is "twenty-one trillion, four hundred ninety-two billion, four hundred sixty-two million, eight hundred sixty-two thousand, eighty".