20791014737 has 2 divisors, whose sum is σ = 20791014738. Its totient is φ = 20791014736.

The previous prime is 20791014721. The next prime is 20791014767. The reversal of 20791014737 is 73741019702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20683041856 + 107972881 = 143816^2 + 10391^2 .

It is a cyclic number.

It is not a de Polignac number, because 20791014737 - 2⁴ = 20791014721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20791014694 and 20791014703.

It is not a weakly prime, because it can be changed into another prime (20791014707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10395507368 + 10395507369.

It is an arithmetic number, because the mean of its divisors is an integer number (10395507369).

Almost surely, 2^20791014737 is an apocalyptic number.

It is an amenable number.

20791014737 is a deficient number, since it is larger than the sum of its proper divisors (1).

20791014737 is an equidigital number, since it uses as much as digits as its factorization.

20791014737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 41.

The spelling of 20791014737 in words is "twenty billion, seven hundred ninety-one million, fourteen thousand, seven hundred thirty-seven".