21024247612460 has 48 divisors (see below), whose sum is σ = 44199531950112. Its totient is φ = 8400440870400.

The previous prime is 21024247612421. The next prime is 21024247612523. The reversal of 21024247612460 is 6421674242012.

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, 359648594 + ... + 359707046.

It is an arithmetic number, because the mean of its divisors is an integer number (920823582294).

Almost surely, 2^{21024247612460} is an apocalyptic number.

21024247612460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21024247612460 is an abundant number, since it is smaller than the sum of its proper divisors (23175284337652).

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

21024247612460 is a wasteful number, since it uses less digits than its factorization.

21024247612460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77954 (or 77952 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 21024247612460 in words is "twenty-one trillion, twenty-four billion, two hundred forty-seven million, six hundred twelve thousand, four hundred sixty".