31350454465 has 24 divisors (see below), whose sum is σ = 42052429440. Its totient is φ = 22413858720.

The previous prime is 31350454463. The next prime is 31350454481. The reversal of 31350454465 is 56445405313.

It is not a de Polignac number, because 31350454465 - 2¹ = 31350454463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31350454463) 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 23 ways as a sum of consecutive naturals, for example, 403449 + ... + 474838.

It is an arithmetic number, because the mean of its divisors is an integer number (1752184560).

Almost surely, 2^31350454465 is an apocalyptic number.

It is an amenable number.

31350454465 is a deficient number, since it is larger than the sum of its proper divisors (10701974975).

31350454465 is a wasteful number, since it uses less digits than its factorization.

31350454465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878373 (or 878362 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 31350454465 its reverse (56445405313), we get a palindrome (87795859778).

The spelling of 31350454465 in words is "thirty-one billion, three hundred fifty million, four hundred fifty-four thousand, four hundred sixty-five".