20071477290673 has 2 divisors, whose sum is σ = 20071477290674. Its totient is φ = 20071477290672.

The previous prime is 20071477290653. The next prime is 20071477290677. The reversal of 20071477290673 is 37609277417002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19962014244769 + 109463045904 = 4467887^2 + 330852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20071477290673 is a prime.

It is not a weakly prime, because it can be changed into another prime (20071477290677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10035738645336 + 10035738645337.

It is an arithmetic number, because the mean of its divisors is an integer number (10035738645337).

Almost surely, 2^{20071477290673} is an apocalyptic number.

It is an amenable number.

20071477290673 is a deficient number, since it is larger than the sum of its proper divisors (1).

20071477290673 is an equidigital number, since it uses as much as digits as its factorization.

20071477290673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6223392, while the sum is 55.

The spelling of 20071477290673 in words is "twenty trillion, seventy-one billion, four hundred seventy-seven million, two hundred ninety thousand, six hundred seventy-three".