21062000700 has 432 divisors, whose sum is σ = 75006372896. Its totient is φ = 5094835200.

The previous prime is 21062000693. The next prime is 21062000719. The reversal of 21062000700 is 700026012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19269354 + ... + 19270446.

Almost surely, 2^21062000700 is an apocalyptic number.

21062000700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21062000700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37503186448).

21062000700 is an abundant number, since it is smaller than the sum of its proper divisors (53944372196).

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

21062000700 is a wasteful number, since it uses less digits than its factorization.

21062000700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

Adding to 21062000700 its reverse (700026012), we get a palindrome (21762026712).

The spelling of 21062000700 in words is "twenty-one billion, sixty-two million, seven hundred", and thus it is an aban number.