36431521345 has 8 divisors (see below), whose sum is σ = 43729195176. Its totient is φ = 29137637376.

The previous prime is 36431521337. The next prime is 36431521361. The reversal of 36431521345 is 54312513463.

It can be written as a sum of positive squares in 4 ways, for example, as 6853025089 + 29578496256 = 82783^2 + 171984^2 .

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 36431521345 - 2³ = 36431521337 is a prime.

It is a super-2 number, since 2×36431521345² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 926272 + ... + 964801.

It is an arithmetic number, because the mean of its divisors is an integer number (5466149397).

Almost surely, 2^36431521345 is an apocalyptic number.

It is an amenable number.

36431521345 is a deficient number, since it is larger than the sum of its proper divisors (7297673831).

36431521345 is a wasteful number, since it uses less digits than its factorization.

36431521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894931.

The product of its digits is 129600, while the sum is 37.

The spelling of 36431521345 in words is "thirty-six billion, four hundred thirty-one million, five hundred twenty-one thousand, three hundred forty-five".