36343634861 has 4 divisors (see below), whose sum is σ = 36605100000. Its totient is φ = 36082169724.

The previous prime is 36343634839. The next prime is 36343634927. The reversal of 36343634861 is 16843634363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16843634363 = 251 ⋅67106113.

It is a cyclic number.

It is not a de Polignac number, because 36343634861 - 2¹⁸ = 36343372717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36343634801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130732361 + ... + 130732638.

It is an arithmetic number, because the mean of its divisors is an integer number (9151275000).

Almost surely, 2^36343634861 is an apocalyptic number.

It is an amenable number.

36343634861 is a deficient number, since it is larger than the sum of its proper divisors (261465139).

36343634861 is a wasteful number, since it uses less digits than its factorization.

36343634861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261465138.

The product of its digits is 2239488, while the sum is 47.

The spelling of 36343634861 in words is "thirty-six billion, three hundred forty-three million, six hundred thirty-four thousand, eight hundred sixty-one".