20250240172639 has 8 divisors (see below), whose sum is σ = 20255040695840. Its totient is φ = 20245440178656.

The previous prime is 20250240172609. The next prime is 20250240172733. The reversal of 20250240172639 is 93627104205202.

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 20250240172639 - 2³⁷ = 20112801219167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20250240172595 and 20250240172604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250240172609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82402342 + ... + 82647724.

It is an arithmetic number, because the mean of its divisors is an integer number (2531880086980).

Almost surely, 2^{20250240172639} is an apocalyptic number.

20250240172639 is a deficient number, since it is larger than the sum of its proper divisors (4800523201).

20250240172639 is a wasteful number, since it uses less digits than its factorization.

20250240172639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264609.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 20250240172639 in words is "twenty trillion, two hundred fifty billion, two hundred forty million, one hundred seventy-two thousand, six hundred thirty-nine".