739801016021 has 2 divisors, whose sum is σ = 739801016022. Its totient is φ = 739801016020.

The previous prime is 739801015997. The next prime is 739801016047. The reversal of 739801016021 is 120610108937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 696956155921 + 42844860100 = 834839^2 + 206990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-739801016021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (739801016621) 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, 369900508010 + 369900508011.

It is an arithmetic number, because the mean of its divisors is an integer number (369900508011).

Almost surely, 2^739801016021 is an apocalyptic number.

It is an amenable number.

739801016021 is a deficient number, since it is larger than the sum of its proper divisors (1).

739801016021 is an equidigital number, since it uses as much as digits as its factorization.

739801016021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 739801016021 in words is "seven hundred thirty-nine billion, eight hundred one million, sixteen thousand, twenty-one".