3526561038397 has 2 divisors, whose sum is σ = 3526561038398. Its totient is φ = 3526561038396.

The previous prime is 3526561038361. The next prime is 3526561038419. The reversal of 3526561038397 is 7938301656253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2006582738521 + 1519978299876 = 1416539^2 + 1232874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3526561038397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3526561038997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1763280519198 + 1763280519199.

It is an arithmetic number, because the mean of its divisors is an integer number (1763280519199).

Almost surely, 2^{3526561038397} is an apocalyptic number.

It is an amenable number.

3526561038397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3526561038397 is an equidigital number, since it uses as much as digits as its factorization.

3526561038397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 58.

The spelling of 3526561038397 in words is "three trillion, five hundred twenty-six billion, five hundred sixty-one million, thirty-eight thousand, three hundred ninety-seven".