21450174096 has 80 divisors (see below), whose sum is σ = 59716289024. Its totient is φ = 6595540992.

The previous prime is 21450174091. The next prime is 21450174103. The reversal of 21450174096 is 69047105412.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (21450174091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966840 + ... + 988776.

Almost surely, 2^21450174096 is an apocalyptic number.

21450174096 is a gapful number since it is divisible by the number (26) 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 21450174096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29858144512).

21450174096 is an abundant number, since it is smaller than the sum of its proper divisors (38266114928).

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

21450174096 is a wasteful number, since it uses less digits than its factorization.

21450174096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23528 (or 23522 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 21450174096 in words is "twenty-one billion, four hundred fifty million, one hundred seventy-four thousand, ninety-six".