36155540389 has 2 divisors, whose sum is σ = 36155540390. Its totient is φ = 36155540388.

The previous prime is 36155540383. The next prime is 36155540423. The reversal of 36155540389 is 98304555163.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30521837025 + 5633703364 = 174705^2 + 75058^2 .

It is a cyclic number.

It is not a de Polignac number, because 36155540389 - 2¹³ = 36155532197 is a prime.

It is a super-2 number, since 2×36155540389² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36155540383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18077770194 + 18077770195.

It is an arithmetic number, because the mean of its divisors is an integer number (18077770195).

Almost surely, 2^36155540389 is an apocalyptic number.

It is an amenable number.

36155540389 is a deficient number, since it is larger than the sum of its proper divisors (1).

36155540389 is an equidigital number, since it uses as much as digits as its factorization.

36155540389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 36155540389 in words is "thirty-six billion, one hundred fifty-five million, five hundred forty thousand, three hundred eighty-nine".