36131856287 has 4 divisors (see below), whose sum is σ = 38257259616. Its totient is φ = 34006452960.

The previous prime is 36131856259. The next prime is 36131856311. The reversal of 36131856287 is 78265813163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36131856287 - 2⁸ = 36131856031 is a prime.

It is a super-2 number, since 2×36131856287² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36131852287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062701639 + ... + 1062701672.

It is an arithmetic number, because the mean of its divisors is an integer number (9564314904).

Almost surely, 2^36131856287 is an apocalyptic number.

36131856287 is a deficient number, since it is larger than the sum of its proper divisors (2125403329).

36131856287 is a wasteful number, since it uses less digits than its factorization.

36131856287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125403328.

The product of its digits is 1451520, while the sum is 50.

The spelling of 36131856287 in words is "thirty-six billion, one hundred thirty-one million, eight hundred fifty-six thousand, two hundred eighty-seven".