3750368621 has 2 divisors, whose sum is σ = 3750368622. Its totient is φ = 3750368620.

The previous prime is 3750368579. The next prime is 3750368651. The reversal of 3750368621 is 1268630573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2738428900 + 1011939721 = 52330^2 + 31811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3750368621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3750368651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1875184310 + 1875184311.

It is an arithmetic number, because the mean of its divisors is an integer number (1875184311).

Almost surely, 2^3750368621 is an apocalyptic number.

It is an amenable number.

3750368621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3750368621 is an equidigital number, since it uses as much as digits as its factorization.

3750368621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 3750368621 is about 61240.2532734802. The cubic root of 3750368621 is about 1553.6671575825.

The spelling of 3750368621 in words is "three billion, seven hundred fifty million, three hundred sixty-eight thousand, six hundred twenty-one".