21725070000 has 200 divisors, whose sum is σ = 70322689536. Its totient is φ = 5777568000.

The previous prime is 21725069983. The next prime is 21725070007. The reversal of 21725070000 is 7052712.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21725070007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14609257 + ... + 14610743.

Almost surely, 2^21725070000 is an apocalyptic number.

21725070000 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 21725070000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35161344768).

21725070000 is an abundant number, since it is smaller than the sum of its proper divisors (48597619536).

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

21725070000 is a wasteful number, since it uses less digits than its factorization.

21725070000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005 (or 1984 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The spelling of 21725070000 in words is "twenty-one billion, seven hundred twenty-five million, seventy thousand".