20364126047 has 4 divisors (see below), whose sum is σ = 21066337320. Its totient is φ = 19661914776.

The previous prime is 20364126043. The next prime is 20364126077. The reversal of 20364126047 is 74062146302.

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

It is a cyclic number.

It is not a de Polignac number, because 20364126047 - 2² = 20364126043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20364125998 and 20364126016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364126043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351105593 + ... + 351105650.

It is an arithmetic number, because the mean of its divisors is an integer number (5266584330).

Almost surely, 2^20364126047 is an apocalyptic number.

20364126047 is a deficient number, since it is larger than the sum of its proper divisors (702211273).

20364126047 is an equidigital number, since it uses as much as digits as its factorization.

20364126047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702211272.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 20364126047 in words is "twenty billion, three hundred sixty-four million, one hundred twenty-six thousand, forty-seven".