21419461662 has 16 divisors (see below), whose sum is σ = 42850810512. Its totient is φ = 7137839360.

The previous prime is 21419461639. The next prime is 21419461667. The reversal of 21419461662 is 26616491412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21419461667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471789 + ... + 515192.

It is an arithmetic number, because the mean of its divisors is an integer number (2678175657).

Almost surely, 2^21419461662 is an apocalyptic number.

21419461662 is an abundant number, since it is smaller than the sum of its proper divisors (21431348850).

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

21419461662 is a wasteful number, since it uses less digits than its factorization.

21419461662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990603.

The product of its digits is 124416, while the sum is 42.

The spelling of 21419461662 in words is "twenty-one billion, four hundred nineteen million, four hundred sixty-one thousand, six hundred sixty-two".