4375742621 has 2 divisors, whose sum is σ = 4375742622. Its totient is φ = 4375742620.

The previous prime is 4375742603. The next prime is 4375742641. The reversal of 4375742621 is 1262475734.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3975302500 + 400440121 = 63050^2 + 20011^2 .

It is a cyclic number.

It is not a de Polignac number, because 4375742621 - 2¹⁰ = 4375741597 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 (4375742641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2187871310 + 2187871311.

It is an arithmetic number, because the mean of its divisors is an integer number (2187871311).

Almost surely, 2^4375742621 is an apocalyptic number.

It is an amenable number.

4375742621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4375742621 is an equidigital number, since it uses as much as digits as its factorization.

4375742621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 41.

The square root of 4375742621 is about 66149.3962255137. The cubic root of 4375742621 is about 1635.6256893840.

The spelling of 4375742621 in words is "four billion, three hundred seventy-five million, seven hundred forty-two thousand, six hundred twenty-one".