21452872129295 has 8 divisors (see below), whose sum is σ = 26631151608960. Its totient is φ = 16570494334240.

The previous prime is 21452872129291. The next prime is 21452872129307. The reversal of 21452872129295 is 59292127825412.

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

It is not a de Polignac number, because 21452872129295 - 2² = 21452872129291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21452872129291) 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, 73975420991 + ... + 73975421280.

It is an arithmetic number, because the mean of its divisors is an integer number (3328893951120).

Almost surely, 2^{21452872129295} is an apocalyptic number.

21452872129295 is a deficient number, since it is larger than the sum of its proper divisors (5178279479665).

21452872129295 is a wasteful number, since it uses less digits than its factorization.

21452872129295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147950842305.

The product of its digits is 14515200, while the sum is 59.

The spelling of 21452872129295 in words is "twenty-one trillion, four hundred fifty-two billion, eight hundred seventy-two million, one hundred twenty-nine thousand, two hundred ninety-five".