31413244545 has 24 divisors (see below), whose sum is σ = 54549208896. Its totient is φ = 16723088928.

The previous prime is 31413244537. The next prime is 31413244549. The reversal of 31413244545 is 54544231413.

31413244545 is a `hidden beast` number, since 3 + 1 + 41 + 32 + 44 + 545 = 666.

It is not a de Polignac number, because 31413244545 - 2³ = 31413244537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31413244549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613477 + ... + 662706.

It is an arithmetic number, because the mean of its divisors is an integer number (2272883704).

Almost surely, 2^31413244545 is an apocalyptic number.

It is an amenable number.

31413244545 is a deficient number, since it is larger than the sum of its proper divisors (23135964351).

31413244545 is a wasteful number, since it uses less digits than its factorization.

31413244545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276741 (or 1276738 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 31413244545 its reverse (54544231413), we get a palindrome (85957475958).

The spelling of 31413244545 in words is "thirty-one billion, four hundred thirteen million, two hundred forty-four thousand, five hundred forty-five".