20326551459 has 8 divisors (see below), whose sum is σ = 27264357120. Its totient is φ = 13469890056.

The previous prime is 20326551433. The next prime is 20326551463. The reversal of 20326551459 is 95415562302.

It is a happy number.

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

It is not a de Polignac number, because 20326551459 - 2⁹ = 20326550947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20326551459.

It is not an unprimeable number, because it can be changed into a prime (20326551499) 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, 20285479 + ... + 20286480.

It is an arithmetic number, because the mean of its divisors is an integer number (3408044640).

Almost surely, 2^20326551459 is an apocalyptic number.

20326551459 is a deficient number, since it is larger than the sum of its proper divisors (6937805661).

20326551459 is a wasteful number, since it uses less digits than its factorization.

20326551459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40572129.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 20326551459 in words is "twenty billion, three hundred twenty-six million, five hundred fifty-one thousand, four hundred fifty-nine".