21461572301480 has 32 divisors (see below), whose sum is σ = 50830039663200. Its totient is φ = 8132806345536.

The previous prime is 21461572301473. The next prime is 21461572301527. The reversal of 21461572301480 is 8410327516412.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14119454702 + ... + 14119456221.

It is an arithmetic number, because the mean of its divisors is an integer number (1588438739475).

Almost surely, 2^{21461572301480} is an apocalyptic number.

21461572301480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21461572301480 is an abundant number, since it is smaller than the sum of its proper divisors (29368467361720).

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

21461572301480 is a wasteful number, since it uses less digits than its factorization.

21461572301480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28238910953 (or 28238910949 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

Adding to 21461572301480 its reverse (8410327516412), we get a palindrome (29871899817892).

The spelling of 21461572301480 in words is "twenty-one trillion, four hundred sixty-one billion, five hundred seventy-two million, three hundred one thousand, four hundred eighty".