20252440645727 has 8 divisors (see below), whose sum is σ = 20347918284096. Its totient is φ = 20157036147072.

The previous prime is 20252440645693. The next prime is 20252440645747. The reversal of 20252440645727 is 72754604425202.

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 20252440645727 - 2⁶ = 20252440645663 is a prime.

It is a super-2 number, since 2×20252440645727² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252440645747) 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, 17729783 + ... + 18837464.

It is an arithmetic number, because the mean of its divisors is an integer number (2543489785512).

Almost surely, 2^{20252440645727} is an apocalyptic number.

20252440645727 is a deficient number, since it is larger than the sum of its proper divisors (95477638369).

20252440645727 is a wasteful number, since it uses less digits than its factorization.

20252440645727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36569857.

The product of its (nonzero) digits is 7526400, while the sum is 50.

The spelling of 20252440645727 in words is "twenty trillion, two hundred fifty-two billion, four hundred forty million, six hundred forty-five thousand, seven hundred twenty-seven".