36913243442618 has 4 divisors (see below), whose sum is σ = 55369865163930. Its totient is φ = 18456621721308.

The previous prime is 36913243442617. The next prime is 36913243442629. The reversal of 36913243442618 is 81624434231963.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33513250417969 + 3399993024649 = 5789063^2 + 1843907^2 .

It is not an unprimeable number, because it can be changed into a prime (36913243442617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9228310860653 + ... + 9228310860656.

Almost surely, 2^{36913243442618} is an apocalyptic number.

36913243442618 is a deficient number, since it is larger than the sum of its proper divisors (18456621721312).

36913243442618 is a wasteful number, since it uses less digits than its factorization.

36913243442618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18456621721311.

The product of its digits is 17915904, while the sum is 56.

The spelling of 36913243442618 in words is "thirty-six trillion, nine hundred thirteen billion, two hundred forty-three million, four hundred forty-two thousand, six hundred eighteen".