515353412450 has 48 divisors (see below), whose sum is σ = 965695807584. Its totient is φ = 204611721600.

The previous prime is 515353412411. The next prime is 515353412477. The reversal of 515353412450 is 54214353515.

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 23 ways as a sum of consecutive naturals, for example, 3688262 + ... + 3825438.

It is an arithmetic number, because the mean of its divisors is an integer number (20118662658).

Almost surely, 2^515353412450 is an apocalyptic number.

515353412450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

515353412450 is a deficient number, since it is larger than the sum of its proper divisors (450342395134).

515353412450 is a wasteful number, since it uses less digits than its factorization.

515353412450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137747 (or 137742 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 515353412450 its reverse (54214353515), we get a palindrome (569567765965).

The spelling of 515353412450 in words is "five hundred fifteen billion, three hundred fifty-three million, four hundred twelve thousand, four hundred fifty".