3645271074761 has 2 divisors, whose sum is σ = 3645271074762. Its totient is φ = 3645271074760.

The previous prime is 3645271074727. The next prime is 3645271074787. The reversal of 3645271074761 is 1674701725463.

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., 2221709491600 + 1423561583161 = 1490540^2 + 1193131^2 .

It is a cyclic number.

It is not a de Polignac number, because 3645271074761 - 2¹⁰ = 3645271073737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3645271074461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822635537380 + 1822635537381.

It is an arithmetic number, because the mean of its divisors is an integer number (1822635537381).

Almost surely, 2^{3645271074761} is an apocalyptic number.

It is an amenable number.

3645271074761 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645271074761 is an equidigital number, since it uses as much as digits as its factorization.

3645271074761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 3645271074761 in words is "three trillion, six hundred forty-five billion, two hundred seventy-one million, seventy-four thousand, seven hundred sixty-one".