21452107417700 has 18 divisors (see below), whose sum is σ = 46551073096626. Its totient is φ = 8580842967040.

The previous prime is 21452107417627. The next prime is 21452107417757. The reversal of 21452107417700 is 771470125412.

It can be written as a sum of positive squares in 3 ways, for example, as 305702833216 + 21146404584484 = 552904^2 + 4598522^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 107260536989 + ... + 107260537188.

Almost surely, 2^{21452107417700} is an apocalyptic number.

21452107417700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21452107417700 is an abundant number, since it is smaller than the sum of its proper divisors (25098965678926).

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

21452107417700 is a wasteful number, since it uses less digits than its factorization.

21452107417700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214521074191 (or 214521074184 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 41.

The spelling of 21452107417700 in words is "twenty-one trillion, four hundred fifty-two billion, one hundred seven million, four hundred seventeen thousand, seven hundred".