36211603138 has 4 divisors (see below), whose sum is σ = 54317404710. Its totient is φ = 18105801568.

The previous prime is 36211603123. The next prime is 36211603139. The reversal of 36211603138 is 83130611263.

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., 35691899929 + 519703209 = 188923^2 + 22797^2 .

It is a super-2 number, since 2×36211603138² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36211603139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9052900783 + ... + 9052900786.

Almost surely, 2^36211603138 is an apocalyptic number.

36211603138 is a deficient number, since it is larger than the sum of its proper divisors (18105801572).

36211603138 is a wasteful number, since it uses less digits than its factorization.

36211603138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18105801571.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 36211603138 in words is "thirty-six billion, two hundred eleven million, six hundred three thousand, one hundred thirty-eight".