513075623730 has 32 divisors (see below), whose sum is σ = 1231450976448. Its totient is φ = 136812446400.

The previous prime is 513075623729. The next prime is 513075623759. The reversal of 513075623730 is 37326570315.

It is a super-2 number, since 2×513075623730² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68365 + ... + 1015295.

It is an arithmetic number, because the mean of its divisors is an integer number (38482843014).

Almost surely, 2^513075623730 is an apocalyptic number.

513075623730 is an abundant number, since it is smaller than the sum of its proper divisors (718375352718).

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

513075623730 is a wasteful number, since it uses less digits than its factorization.

513075623730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965002.

The product of its (nonzero) digits is 396900, while the sum is 42.

The spelling of 513075623730 in words is "five hundred thirteen billion, seventy-five million, six hundred twenty-three thousand, seven hundred thirty".