20025289879 has 8 divisors (see below), whose sum is σ = 22887613728. Its totient is φ = 17163358080.

The previous prime is 20025289877. The next prime is 20025289909. The reversal of 20025289879 is 97898252002.

It is a happy number.

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 20025289879 - 2¹ = 20025289877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025289877) 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, 21099 + ... + 201235.

It is an arithmetic number, because the mean of its divisors is an integer number (2860951716).

Almost surely, 2^20025289879 is an apocalyptic number.

20025289879 is a deficient number, since it is larger than the sum of its proper divisors (2862323849).

20025289879 is a wasteful number, since it uses less digits than its factorization.

20025289879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196025.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 20025289879 in words is "twenty billion, twenty-five million, two hundred eighty-nine thousand, eight hundred seventy-nine".