21892074360 has 512 divisors, whose sum is σ = 82301184000. Its totient is φ = 4593549312.

The previous prime is 21892074319. The next prime is 21892074361. The reversal of 21892074360 is 6347029812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21892074361) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11588296 + ... + 11590184.

It is an arithmetic number, because the mean of its divisors is an integer number (160744500).

Almost surely, 2^21892074360 is an apocalyptic number.

21892074360 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 21892074360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41150592000).

21892074360 is an abundant number, since it is smaller than the sum of its proper divisors (60409109640).

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

21892074360 is a wasteful number, since it uses less digits than its factorization.

21892074360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 21892074360 in words is "twenty-one billion, eight hundred ninety-two million, seventy-four thousand, three hundred sixty".