36543646642 has 8 divisors (see below), whose sum is σ = 54826761132. Its totient is φ = 18268059600.

The previous prime is 36543646609. The next prime is 36543646697. The reversal of 36543646642 is 24664634563.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29418767361 + 7124879281 = 171519^2 + 84409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1869709 + ... + 1889152.

Almost surely, 2^36543646642 is an apocalyptic number.

36543646642 is a deficient number, since it is larger than the sum of its proper divisors (18283114490).

36543646642 is a wasteful number, since it uses less digits than its factorization.

36543646642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763724.

The product of its digits is 7464960, while the sum is 49.

The spelling of 36543646642 in words is "thirty-six billion, five hundred forty-three million, six hundred forty-six thousand, six hundred forty-two".