3736427521 has 2 divisors, whose sum is σ = 3736427522. Its totient is φ = 3736427520.

The previous prime is 3736427477. The next prime is 3736427537. The reversal of 3736427521 is 1257246373.

3736427521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3616218225 + 120209296 = 60135^2 + 10964^2 .

It is a cyclic number.

It is not a de Polignac number, because 3736427521 - 2⁷ = 3736427393 is a prime.

It is not a weakly prime, because it can be changed into another prime (3736427561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1868213760 + 1868213761.

It is an arithmetic number, because the mean of its divisors is an integer number (1868213761).

Almost surely, 2^3736427521 is an apocalyptic number.

It is an amenable number.

3736427521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3736427521 is an equidigital number, since it uses as much as digits as its factorization.

3736427521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 40.

The square root of 3736427521 is about 61126.3242883130. The cubic root of 3736427521 is about 1551.7396383277.

The spelling of 3736427521 in words is "three billion, seven hundred thirty-six million, four hundred twenty-seven thousand, five hundred twenty-one".