738647746817 has 2 divisors, whose sum is σ = 738647746818. Its totient is φ = 738647746816.

The previous prime is 738647746789. The next prime is 738647746843. The reversal of 738647746817 is 718647746837.

738647746817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382902301681 + 355745445136 = 618791^2 + 596444^2 .

It is a cyclic number.

It is not a de Polignac number, because 738647746817 - 2³⁸ = 463769839873 is a prime.

It is not a weakly prime, because it can be changed into another prime (738647766817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369323873408 + 369323873409.

It is an arithmetic number, because the mean of its divisors is an integer number (369323873409).

Almost surely, 2^738647746817 is an apocalyptic number.

It is an amenable number.

738647746817 is a deficient number, since it is larger than the sum of its proper divisors (1).

738647746817 is an equidigital number, since it uses as much as digits as its factorization.

738647746817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 265531392, while the sum is 68.

The spelling of 738647746817 in words is "seven hundred thirty-eight billion, six hundred forty-seven million, seven hundred forty-six thousand, eight hundred seventeen".