20425622626 has 4 divisors (see below), whose sum is σ = 30638433942. Its totient is φ = 10212811312.

The previous prime is 20425622617. The next prime is 20425622629. The reversal of 20425622626 is 62622652402.

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

It can be written as a sum of positive squares in only one way, i.e., 10857848401 + 9567774225 = 104201^2 + 97815^2 .

It is not an unprimeable number, because it can be changed into a prime (20425622629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106405655 + ... + 5106405658.

Almost surely, 2^20425622626 is an apocalyptic number.

20425622626 is a deficient number, since it is larger than the sum of its proper divisors (10212811316).

20425622626 is a wasteful number, since it uses less digits than its factorization.

20425622626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212811315.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 20425622626 in words is "twenty billion, four hundred twenty-five million, six hundred twenty-two thousand, six hundred twenty-six".