21424512642162 has 64 divisors (see below), whose sum is σ = 49984086528000. Its totient is φ = 5995333532160.

The previous prime is 21424512642151. The next prime is 21424512642173. The reversal of 21424512642162 is 26124621542412.

It is an interprime number because it is at equal distance from previous prime (21424512642151) and next prime (21424512642173).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15280287 + ... + 16623362.

It is an arithmetic number, because the mean of its divisors is an integer number (781001352000).

Almost surely, 2^{21424512642162} is an apocalyptic number.

21424512642162 is an abundant number, since it is smaller than the sum of its proper divisors (28559573885838).

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

21424512642162 is a wasteful number, since it uses less digits than its factorization.

21424512642162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31903991.

The product of its digits is 368640, while the sum is 42.

The spelling of 21424512642162 in words is "twenty-one trillion, four hundred twenty-four billion, five hundred twelve million, six hundred forty-two thousand, one hundred sixty-two".