21482961480 has 64 divisors (see below), whose sum is σ = 71609875200. Its totient is φ = 5728789440.

The previous prime is 21482961443. The next prime is 21482961491. The reversal of 21482961480 is 8416928412.

21482961480 is a `hidden beast` number, since 2 + 1 + 4 + 8 + 29 + 614 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9944736 + ... + 9946895.

It is an arithmetic number, because the mean of its divisors is an integer number (1118904300).

Almost surely, 2^21482961480 is an apocalyptic number.

21482961480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21482961480 is an abundant number, since it is smaller than the sum of its proper divisors (50126913720).

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

21482961480 is a wasteful number, since it uses less digits than its factorization.

21482961480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19891651 (or 19891641 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 21482961480 in words is "twenty-one billion, four hundred eighty-two million, nine hundred sixty-one thousand, four hundred eighty".