3721375408337 has 2 divisors, whose sum is σ = 3721375408338. Its totient is φ = 3721375408336.

The previous prime is 3721375408327. The next prime is 3721375408339. The reversal of 3721375408337 is 7338045731273.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3248642155201 + 472733253136 = 1802399^2 + 687556^2 .

It is a cyclic number.

It is not a de Polignac number, because 3721375408337 - 2³⁴ = 3704195539153 is a prime.

Together with 3721375408339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3721375408339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860687704168 + 1860687704169.

It is an arithmetic number, because the mean of its divisors is an integer number (1860687704169).

Almost surely, 2^{3721375408337} is an apocalyptic number.

It is an amenable number.

3721375408337 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721375408337 is an equidigital number, since it uses as much as digits as its factorization.

3721375408337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 3721375408337 in words is "three trillion, seven hundred twenty-one billion, three hundred seventy-five million, four hundred eight thousand, three hundred thirty-seven".