738162610721 has 2 divisors, whose sum is σ = 738162610722. Its totient is φ = 738162610720.

The previous prime is 738162610657. The next prime is 738162610729. The reversal of 738162610721 is 127016261837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726013060096 + 12149550625 = 852064^2 + 110225^2 .

It is a cyclic number.

It is not a de Polignac number, because 738162610721 - 2⁶ = 738162610657 is a prime.

It is not a weakly prime, because it can be changed into another prime (738162610729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369081305360 + 369081305361.

It is an arithmetic number, because the mean of its divisors is an integer number (369081305361).

Almost surely, 2^738162610721 is an apocalyptic number.

It is an amenable number.

738162610721 is a deficient number, since it is larger than the sum of its proper divisors (1).

738162610721 is an equidigital number, since it uses as much as digits as its factorization.

738162610721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 738162610721 in words is "seven hundred thirty-eight billion, one hundred sixty-two million, six hundred ten thousand, seven hundred twenty-one".