20736442294 has 8 divisors (see below), whose sum is σ = 31105275480. Its totient is φ = 10368017136.

The previous prime is 20736442261. The next prime is 20736442361. The reversal of 20736442294 is 49224463702.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20736442294.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137802 + ... + 245890.

It is an arithmetic number, because the mean of its divisors is an integer number (3888159435).

Almost surely, 2^20736442294 is an apocalyptic number.

20736442294 is a deficient number, since it is larger than the sum of its proper divisors (10368833186).

20736442294 is a wasteful number, since it uses less digits than its factorization.

20736442294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204014.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 20736442294 in words is "twenty billion, seven hundred thirty-six million, four hundred forty-two thousand, two hundred ninety-four".