31545444345245 has 8 divisors (see below), whose sum is σ = 38066011054560. Its totient is φ = 25095370249360.

The previous prime is 31545444345241. The next prime is 31545444345277. The reversal of 31545444345245 is 54254344454513.

It is a happy number.

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

It is not a de Polignac number, because 31545444345245 - 2² = 31545444345241 is a prime.

It is a super-2 number, since 2×31545444345245² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31545444345241) 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, 17623152371 + ... + 17623154160.

It is an arithmetic number, because the mean of its divisors is an integer number (4758251381820).

Almost surely, 2^{31545444345245} is an apocalyptic number.

It is an amenable number.

31545444345245 is a deficient number, since it is larger than the sum of its proper divisors (6520566709315).

31545444345245 is a wasteful number, since it uses less digits than its factorization.

31545444345245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35246306715.

The product of its digits is 46080000, while the sum is 53.

Adding to 31545444345245 its reverse (54254344454513), we get a palindrome (85799788799758).

The spelling of 31545444345245 in words is "thirty-one trillion, five hundred forty-five billion, four hundred forty-four million, three hundred forty-five thousand, two hundred forty-five".