36549138331 has 2 divisors, whose sum is σ = 36549138332. Its totient is φ = 36549138330.

The previous prime is 36549138257. The next prime is 36549138341. The reversal of 36549138331 is 13383194563.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36549138331 - 2¹³ = 36549130139 is a prime.

It is a super-2 number, since 2×36549138331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36549138341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18274569165 + 18274569166.

It is an arithmetic number, because the mean of its divisors is an integer number (18274569166).

Almost surely, 2^36549138331 is an apocalyptic number.

36549138331 is a deficient number, since it is larger than the sum of its proper divisors (1).

36549138331 is an equidigital number, since it uses as much as digits as its factorization.

36549138331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 46.

The spelling of 36549138331 in words is "thirty-six billion, five hundred forty-nine million, one hundred thirty-eight thousand, three hundred thirty-one".