20008426651 has 4 divisors (see below), whose sum is σ = 20022730000. Its totient is φ = 19994123304.

The previous prime is 20008426649. The next prime is 20008426703. The reversal of 20008426651 is 15662480002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20008426651 - 2¹ = 20008426649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20008426631) 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, 7149576 + ... + 7152373.

It is an arithmetic number, because the mean of its divisors is an integer number (5005682500).

Almost surely, 2^20008426651 is an apocalyptic number.

20008426651 is a deficient number, since it is larger than the sum of its proper divisors (14303349).

20008426651 is a wasteful number, since it uses less digits than its factorization.

20008426651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14303348.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20008426651 in words is "twenty billion, eight million, four hundred twenty-six thousand, six hundred fifty-one".