20259704026 has 8 divisors (see below), whose sum is σ = 30904633440. Its totient is φ = 9958159548.

The previous prime is 20259703991. The next prime is 20259704027. The reversal of 20259704026 is 62040795202.

It is a happy number.

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

It is a super-2 number, since 2×20259704026² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20259704027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85846086 + ... + 85846321.

It is an arithmetic number, because the mean of its divisors is an integer number (3863079180).

Almost surely, 2^20259704026 is an apocalyptic number.

20259704026 is a deficient number, since it is larger than the sum of its proper divisors (10644929414).

20259704026 is a wasteful number, since it uses less digits than its factorization.

20259704026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171692468.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 20259704026 in words is "twenty billion, two hundred fifty-nine million, seven hundred four thousand, twenty-six".