738370548221 has 2 divisors, whose sum is σ = 738370548222. Its totient is φ = 738370548220.

The previous prime is 738370548191. The next prime is 738370548233. The reversal of 738370548221 is 122845073837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474636945721 + 263733602500 = 688939^2 + 513550^2 .

It is a cyclic number.

It is not a de Polignac number, because 738370548221 - 2¹⁴ = 738370531837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 738370548221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (738370548821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369185274110 + 369185274111.

It is an arithmetic number, because the mean of its divisors is an integer number (369185274111).

Almost surely, 2^738370548221 is an apocalyptic number.

It is an amenable number.

738370548221 is a deficient number, since it is larger than the sum of its proper divisors (1).

738370548221 is an equidigital number, since it uses as much as digits as its factorization.

738370548221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 738370548221 in words is "seven hundred thirty-eight billion, three hundred seventy million, five hundred forty-eight thousand, two hundred twenty-one".