513245245233140 has 72 divisors (see below), whose sum is σ = 1327536861242760. Its totient is φ = 165618633750528.

The previous prime is 513245245233103. The next prime is 513245245233151. The reversal of 513245245233140 is 41332542542315.

It can be written as a sum of positive squares in 4 ways, for example, as 27754963816804 + 485490281416336 = 5268298^2 + 22033844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 513245245233091 and 513245245233100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15403502105 + ... + 15403535424.

It is an arithmetic number, because the mean of its divisors is an integer number (18438011961705).

Almost surely, 2^{513245245233140} is an apocalyptic number.

It is an amenable number.

513245245233140 is an abundant number, since it is smaller than the sum of its proper divisors (814291616009620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513245245233140 is a wasteful number, since it uses less digits than its factorization.

513245245233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30807037569 (or 30807037560 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

Adding to 513245245233140 its reverse (41332542542315), we get a palindrome (554577787775455).

The spelling of 513245245233140 in words is "five hundred thirteen trillion, two hundred forty-five billion, two hundred forty-five million, two hundred thirty-three thousand, one hundred forty".