2038701838721 has 2 divisors, whose sum is σ = 2038701838722. Its totient is φ = 2038701838720.

The previous prime is 2038701838633. The next prime is 2038701838781. The reversal of 2038701838721 is 1278381078302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1128776628721 + 909925210000 = 1062439^2 + 953900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2038701838721 - 2¹⁴ = 2038701822337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2038701838721.

It is not a weakly prime, because it can be changed into another prime (2038701838781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019350919360 + 1019350919361.

It is an arithmetic number, because the mean of its divisors is an integer number (1019350919361).

Almost surely, 2^{2038701838721} is an apocalyptic number.

It is an amenable number.

2038701838721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2038701838721 is an equidigital number, since it uses as much as digits as its factorization.

2038701838721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 2038701838721 in words is "two trillion, thirty-eight billion, seven hundred one million, eight hundred thirty-eight thousand, seven hundred twenty-one".