20300639626 has 4 divisors (see below), whose sum is σ = 30450959442. Its totient is φ = 10150319812.

The previous prime is 20300639621. The next prime is 20300639627. The reversal of 20300639626 is 62693600302.

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., 15301442601 + 4999197025 = 123699^2 + 70705^2 .

It is not an unprimeable number, because it can be changed into a prime (20300639621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5075159905 + ... + 5075159908.

Almost surely, 2^20300639626 is an apocalyptic number.

20300639626 is a deficient number, since it is larger than the sum of its proper divisors (10150319816).

20300639626 is a wasteful number, since it uses less digits than its factorization.

20300639626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150319815.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 20300639626 in words is "twenty billion, three hundred million, six hundred thirty-nine thousand, six hundred twenty-six".