20422626399 has 48 divisors (see below), whose sum is σ = 34648233984. Its totient is φ = 11348380800.

The previous prime is 20422626383. The next prime is 20422626403. The reversal of 20422626399 is 99362622402.

20422626399 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 2 + 6 + 2 + 639 + 9 = 666.

It is not a de Polignac number, because 20422626399 - 2⁴ = 20422626383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422626199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 790602 + ... + 816024.

It is an arithmetic number, because the mean of its divisors is an integer number (721838208).

Almost surely, 2^20422626399 is an apocalyptic number.

20422626399 is a deficient number, since it is larger than the sum of its proper divisors (14225607585).

20422626399 is a wasteful number, since it uses less digits than its factorization.

20422626399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25788 (or 25785 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 20422626399 in words is "twenty billion, four hundred twenty-two million, six hundred twenty-six thousand, three hundred ninety-nine".