4235418145261 has 2 divisors, whose sum is σ = 4235418145262. Its totient is φ = 4235418145260.

The previous prime is 4235418145219. The next prime is 4235418145337. The reversal of 4235418145261 is 1625418145324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3920578202025 + 314839943236 = 1980045^2 + 561106^2 .

It is a cyclic number.

It is not a de Polignac number, because 4235418145261 - 2¹⁵ = 4235418112493 is a prime.

It is a super-2 number, since 2×4235418145261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4235418145561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117709072630 + 2117709072631.

It is an arithmetic number, because the mean of its divisors is an integer number (2117709072631).

Almost surely, 2^{4235418145261} is an apocalyptic number.

It is an amenable number.

4235418145261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4235418145261 is an equidigital number, since it uses as much as digits as its factorization.

4235418145261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 46.

The spelling of 4235418145261 in words is "four trillion, two hundred thirty-five billion, four hundred eighteen million, one hundred forty-five thousand, two hundred sixty-one".