36281881439 has 8 divisors (see below), whose sum is σ = 36655035120. Its totient is φ = 35910637056.

The previous prime is 36281881409. The next prime is 36281881451. The reversal of 36281881439 is 93418818263.

36281881439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36281881439 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 (36281881409) 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, 439109 + ... + 515150.

It is an arithmetic number, because the mean of its divisors is an integer number (4581879390).

Almost surely, 2^36281881439 is an apocalyptic number.

36281881439 is a deficient number, since it is larger than the sum of its proper divisors (373153681).

36281881439 is a wasteful number, since it uses less digits than its factorization.

36281881439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954649.

The product of its digits is 1990656, while the sum is 53.

The spelling of 36281881439 in words is "thirty-six billion, two hundred eighty-one million, eight hundred eighty-one thousand, four hundred thirty-nine".