3535857087421 has 2 divisors, whose sum is σ = 3535857087422. Its totient is φ = 3535857087420.

The previous prime is 3535857087397. The next prime is 3535857087449. The reversal of 3535857087421 is 1247807585353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3492372326521 + 43484760900 = 1868789^2 + 208530^2 .

It is a cyclic number.

It is not a de Polignac number, because 3535857087421 - 2¹⁹ = 3535856563133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3535857087821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1767928543710 + 1767928543711.

It is an arithmetic number, because the mean of its divisors is an integer number (1767928543711).

Almost surely, 2^{3535857087421} is an apocalyptic number.

It is an amenable number.

3535857087421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3535857087421 is an equidigital number, since it uses as much as digits as its factorization.

3535857087421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224000, while the sum is 58.

The spelling of 3535857087421 in words is "three trillion, five hundred thirty-five billion, eight hundred fifty-seven million, eighty-seven thousand, four hundred twenty-one".