315744450073 has 4 divisors (see below), whose sum is σ = 340032484708. Its totient is φ = 291456415440.

The previous prime is 315744450059. The next prime is 315744450121. The reversal of 315744450073 is 370054447513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53510330329 + 262234119744 = 231323^2 + 512088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315744450073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315744454073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12144017298 + ... + 12144017323.

It is an arithmetic number, because the mean of its divisors is an integer number (85008121177).

Almost surely, 2^315744450073 is an apocalyptic number.

It is an amenable number.

315744450073 is a deficient number, since it is larger than the sum of its proper divisors (24288034635).

315744450073 is a wasteful number, since it uses less digits than its factorization.

315744450073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24288034634.

The product of its (nonzero) digits is 705600, while the sum is 43.

Adding to 315744450073 its reverse (370054447513), we get a palindrome (685798897586).

The spelling of 315744450073 in words is "three hundred fifteen billion, seven hundred forty-four million, four hundred fifty thousand, seventy-three".