31552413345 has 12 divisors (see below), whose sum is σ = 54690849876. Its totient is φ = 16827953760.

The previous prime is 31552413341. The next prime is 31552413367. The reversal of 31552413345 is 54331425513.

31552413345 is a `hidden beast` number, since 31 + 55 + 241 + 334 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4184666721 + 27367746624 = 64689^2 + 165432^2 .

It is not a de Polignac number, because 31552413345 - 2² = 31552413341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31552413341) 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 11 ways as a sum of consecutive naturals, for example, 350582326 + ... + 350582415.

It is an arithmetic number, because the mean of its divisors is an integer number (4557570823).

Almost surely, 2^31552413345 is an apocalyptic number.

It is an amenable number.

31552413345 is a deficient number, since it is larger than the sum of its proper divisors (23138436531).

31552413345 is a wasteful number, since it uses less digits than its factorization.

31552413345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701164752 (or 701164749 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 31552413345 its reverse (54331425513), we get a palindrome (85883838858).

The spelling of 31552413345 in words is "thirty-one billion, five hundred fifty-two million, four hundred thirteen thousand, three hundred forty-five".