36345216987 has 24 divisors (see below), whose sum is σ = 53836408080. Its totient is φ = 23613976320.

The previous prime is 36345216967. The next prime is 36345216991. The reversal of 36345216987 is 78961254363.

36345216987 is a `hidden beast` number, since 3 + 6 + 34 + 521 + 6 + 9 + 87 = 666.

It is not a de Polignac number, because 36345216987 - 2¹⁸ = 36344954843 is a prime.

It is a super-3 number, since 3×36345216987³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (36345216917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297439 + ... + 401447.

It is an arithmetic number, because the mean of its divisors is an integer number (2243183670).

Almost surely, 2^36345216987 is an apocalyptic number.

36345216987 is a deficient number, since it is larger than the sum of its proper divisors (17491191093).

36345216987 is a wasteful number, since it uses less digits than its factorization.

36345216987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105003 (or 105000 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 36345216987 in words is "thirty-six billion, three hundred forty-five million, two hundred sixteen thousand, nine hundred eighty-seven".