36521126261 has 2 divisors, whose sum is σ = 36521126262. Its totient is φ = 36521126260.

The previous prime is 36521126183. The next prime is 36521126267. The reversal of 36521126261 is 16262112563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23621845636 + 12899280625 = 153694^2 + 113575^2 .

It is a cyclic number.

It is not a de Polignac number, because 36521126261 - 2¹⁰ = 36521125237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36521126267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18260563130 + 18260563131.

It is an arithmetic number, because the mean of its divisors is an integer number (18260563131).

Almost surely, 2^36521126261 is an apocalyptic number.

It is an amenable number.

36521126261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36521126261 is an equidigital number, since it uses as much as digits as its factorization.

36521126261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The spelling of 36521126261 in words is "thirty-six billion, five hundred twenty-one million, one hundred twenty-six thousand, two hundred sixty-one".