20632674694 has 4 divisors (see below), whose sum is σ = 30949012044. Its totient is φ = 10316337346.

The previous prime is 20632674691. The next prime is 20632674707. The reversal of 20632674694 is 49647623602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49647623602 = 2 ⋅24823811801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20632674691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5158168672 + ... + 5158168675.

It is an arithmetic number, because the mean of its divisors is an integer number (7737253011).

Almost surely, 2^20632674694 is an apocalyptic number.

20632674694 is a deficient number, since it is larger than the sum of its proper divisors (10316337350).

20632674694 is a wasteful number, since it uses less digits than its factorization.

20632674694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316337349.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 20632674694 in words is "twenty billion, six hundred thirty-two million, six hundred seventy-four thousand, six hundred ninety-four".