21124266462630 has 48 divisors (see below), whose sum is σ = 56816992561680. Its totient is φ = 5438891594304.

The previous prime is 21124266462613. The next prime is 21124266462631. The reversal of 21124266462630 is 3626466242112.

It is a happy number.

21124266462630 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 4 + 2 + 6 + 6 + 4 + 6 + 2 + 630 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21124266462631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4046791732 + ... + 4046796951.

It is an arithmetic number, because the mean of its divisors is an integer number (1183687345035).

Almost surely, 2^{21124266462630} is an apocalyptic number.

21124266462630 is an abundant number, since it is smaller than the sum of its proper divisors (35692726099050).

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

21124266462630 is a wasteful number, since it uses less digits than its factorization.

21124266462630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8093588725 (or 8093588722 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 21124266462630 in words is "twenty-one trillion, one hundred twenty-four billion, two hundred sixty-six million, four hundred sixty-two thousand, six hundred thirty".