35420213561 has 2 divisors, whose sum is σ = 35420213562. Its totient is φ = 35420213560.

The previous prime is 35420213519. The next prime is 35420213567. The reversal of 35420213561 is 16531202453.

It is a happy number.

35420213561 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., 21081588025 + 14338625536 = 145195^2 + 119744^2 .

It is a cyclic number.

It is not a de Polignac number, because 35420213561 - 2¹⁸ = 35419951417 is a prime.

It is a super-3 number, since 3×35420213561³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (35420213567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17710106780 + 17710106781.

It is an arithmetic number, because the mean of its divisors is an integer number (17710106781).

Almost surely, 2^35420213561 is an apocalyptic number.

It is an amenable number.

35420213561 is a deficient number, since it is larger than the sum of its proper divisors (1).

35420213561 is an equidigital number, since it uses as much as digits as its factorization.

35420213561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

It can be divided in two parts, 354202 and 13561, that added together give a palindrome (367763).

The spelling of 35420213561 in words is "thirty-five billion, four hundred twenty million, two hundred thirteen thousand, five hundred sixty-one".