3902641641281 has 2 divisors, whose sum is σ = 3902641641282. Its totient is φ = 3902641641280.

The previous prime is 3902641641053. The next prime is 3902641641287. The reversal of 3902641641281 is 1821461462093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3572890063681 + 329751577600 = 1890209^2 + 574240^2 .

It is a cyclic number.

It is not a de Polignac number, because 3902641641281 - 2¹⁴ = 3902641624897 is a prime.

It is a super-2 number, since 2×3902641641281² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3902641641287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951320820640 + 1951320820641.

It is an arithmetic number, because the mean of its divisors is an integer number (1951320820641).

Almost surely, 2^{3902641641281} is an apocalyptic number.

It is an amenable number.

3902641641281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3902641641281 is an equidigital number, since it uses as much as digits as its factorization.

3902641641281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 3902641641281 in words is "three trillion, nine hundred two billion, six hundred forty-one million, six hundred forty-one thousand, two hundred eighty-one".