36803431481 has 4 divisors (see below), whose sum is σ = 36807262464. Its totient is φ = 36799600500.

The previous prime is 36803431409. The next prime is 36803431487. The reversal of 36803431481 is 18413430863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36803431481 - 2¹⁴ = 36803415097 is a prime.

It is a super-3 number, since 3×36803431481³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36803431487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901045 + ... + 1920306.

It is an arithmetic number, because the mean of its divisors is an integer number (9201815616).

Almost surely, 2^36803431481 is an apocalyptic number.

It is an amenable number.

36803431481 is a deficient number, since it is larger than the sum of its proper divisors (3830983).

36803431481 is an equidigital number, since it uses as much as digits as its factorization.

36803431481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830982.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 36803431481 in words is "thirty-six billion, eight hundred three million, four hundred thirty-one thousand, four hundred eighty-one".