36939848261 has 2 divisors, whose sum is σ = 36939848262. Its totient is φ = 36939848260.

The previous prime is 36939848221. The next prime is 36939848291. The reversal of 36939848261 is 16284893963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19910903236 + 17028945025 = 141106^2 + 130495^2 .

It is a cyclic number.

It is not a de Polignac number, because 36939848261 - 2³⁴ = 19759979077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36939848261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36939848221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18469924130 + 18469924131.

It is an arithmetic number, because the mean of its divisors is an integer number (18469924131).

Almost surely, 2^36939848261 is an apocalyptic number.

It is an amenable number.

36939848261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36939848261 is an equidigital number, since it uses as much as digits as its factorization.

36939848261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13436928, while the sum is 59.

The spelling of 36939848261 in words is "thirty-six billion, nine hundred thirty-nine million, eight hundred forty-eight thousand, two hundred sixty-one".