20422977459 has 8 divisors (see below), whose sum is σ = 27311441040. Its totient is φ = 13574916096.

The previous prime is 20422977457. The next prime is 20422977511. The reversal of 20422977459 is 95477922402.

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 20422977459 - 2¹ = 20422977457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20422977451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10099374 + ... + 10101395.

It is an arithmetic number, because the mean of its divisors is an integer number (3413930130).

Almost surely, 2^20422977459 is an apocalyptic number.

20422977459 is a deficient number, since it is larger than the sum of its proper divisors (6888463581).

20422977459 is a wasteful number, since it uses less digits than its factorization.

20422977459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20201109.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 20422977459 in words is "twenty billion, four hundred twenty-two million, nine hundred seventy-seven thousand, four hundred fifty-nine".