513661030374 has 16 divisors (see below), whose sum is σ = 1052378696880. Its totient is φ = 167044237440.

The previous prime is 513661030373. The next prime is 513661030423. The reversal of 513661030374 is 473030166315.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513661030373) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1044026239 + ... + 1044026730.

It is an arithmetic number, because the mean of its divisors is an integer number (65773668555).

Almost surely, 2^513661030374 is an apocalyptic number.

513661030374 is an abundant number, since it is smaller than the sum of its proper divisors (538717666506).

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

513661030374 is a wasteful number, since it uses less digits than its factorization.

513661030374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088053015.

The product of its (nonzero) digits is 136080, while the sum is 39.

Adding to 513661030374 its reverse (473030166315), we get a palindrome (986691196689).

The spelling of 513661030374 in words is "five hundred thirteen billion, six hundred sixty-one million, thirty thousand, three hundred seventy-four".