21460428126 has 24 divisors (see below), whose sum is σ = 46656300600. Its totient is φ = 7129059696.

The previous prime is 21460428097. The next prime is 21460428149. The reversal of 21460428126 is 62182406412.

21460428126 is a `hidden beast` number, since 2 + 1 + 4 + 604 + 28 + 1 + 26 = 666.

It is a super-3 number, since 3×21460428126³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2029276 + ... + 2039823.

It is an arithmetic number, because the mean of its divisors is an integer number (1944012525).

Almost surely, 2^21460428126 is an apocalyptic number.

21460428126 is an abundant number, since it is smaller than the sum of its proper divisors (25195872474).

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

21460428126 is a wasteful number, since it uses less digits than its factorization.

21460428126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069400 (or 4069397 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 21460428126 in words is "twenty-one billion, four hundred sixty million, four hundred twenty-eight thousand, one hundred twenty-six".