20312650650634 has 8 divisors (see below), whose sum is σ = 31212121731588. Its totient is φ = 9908610073440.

The previous prime is 20312650650623. The next prime is 20312650650671. The reversal of 20312650650634 is 43605605621302.

It can be written as a sum of positive squares in 2 ways, for example, as 15156640281409 + 5156010369225 = 3893153^2 + 2270685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 123857625837 + ... + 123857626000.

Almost surely, 2^{20312650650634} is an apocalyptic number.

20312650650634 is a deficient number, since it is larger than the sum of its proper divisors (10899471080954).

20312650650634 is a wasteful number, since it uses less digits than its factorization.

20312650650634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247715251880.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 20312650650634 in words is "twenty trillion, three hundred twelve billion, six hundred fifty million, six hundred fifty thousand, six hundred thirty-four".