21463657060 has 48 divisors (see below), whose sum is σ = 45553487616. Its totient is φ = 8494227072.

The previous prime is 21463657051. The next prime is 21463657069. The reversal of 21463657060 is 6075636412.

It is an interprime number because it is at equal distance from previous prime (21463657051) and next prime (21463657069).

It is not an unprimeable number, because it can be changed into a prime (21463657069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544009 + ... + 2552431.

It is an arithmetic number, because the mean of its divisors is an integer number (949030992).

Almost surely, 2^21463657060 is an apocalyptic number.

21463657060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21463657060 is an abundant number, since it is smaller than the sum of its proper divisors (24089830556).

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

21463657060 is a wasteful number, since it uses less digits than its factorization.

21463657060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772 (or 9770 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 21463657060 in words is "twenty-one billion, four hundred sixty-three million, six hundred fifty-seven thousand, sixty".