36187631561 has 8 divisors (see below), whose sum is σ = 37134118560. Its totient is φ = 35245913472.

The previous prime is 36187631549. The next prime is 36187631573. The reversal of 36187631561 is 16513678163.

It is an interprime number because it is at equal distance from previous prime (36187631549) and next prime (36187631573).

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

It is a cyclic number.

It is not a de Polignac number, because 36187631561 - 2⁶ = 36187631497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36187631531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176851 + ... + 1207208.

It is an arithmetic number, because the mean of its divisors is an integer number (4641764820).

Almost surely, 2^36187631561 is an apocalyptic number.

It is an amenable number.

36187631561 is a deficient number, since it is larger than the sum of its proper divisors (946486999).

36187631561 is a wasteful number, since it uses less digits than its factorization.

36187631561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384455.

The product of its digits is 544320, while the sum is 47.

The spelling of 36187631561 in words is "thirty-six billion, one hundred eighty-seven million, six hundred thirty-one thousand, five hundred sixty-one".