21052932443497 has 8 divisors (see below), whose sum is σ = 21378107347712. Its totient is φ = 20728079658000.

The previous prime is 21052932443471. The next prime is 21052932443533. The reversal of 21052932443497 is 79434423925012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21052932443497 - 2¹⁹ = 21052931919209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21052932443197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80397954 + ... + 80659387.

It is an arithmetic number, because the mean of its divisors is an integer number (2672263418464).

Almost surely, 2^{21052932443497} is an apocalyptic number.

It is an amenable number.

21052932443497 is a deficient number, since it is larger than the sum of its proper divisors (325174904215).

21052932443497 is a wasteful number, since it uses less digits than its factorization.

21052932443497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161059359.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 21052932443497 in words is "twenty-one trillion, fifty-two billion, nine hundred thirty-two million, four hundred forty-three thousand, four hundred ninety-seven".