515015465264 has 20 divisors (see below), whose sum is σ = 997998066000. Its totient is φ = 257467577280.

The previous prime is 515015465257. The next prime is 515015465267. The reversal of 515015465264 is 462564510515.

It is a super-2 number, since 2×515015465264² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (515015465267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2403764 + ... + 2609235.

It is an arithmetic number, because the mean of its divisors is an integer number (49899903300).

Almost surely, 2^515015465264 is an apocalyptic number.

It is an amenable number.

515015465264 is a deficient number, since it is larger than the sum of its proper divisors (482982600736).

515015465264 is a wasteful number, since it uses less digits than its factorization.

515015465264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019428 (or 5019422 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 44.

Adding to 515015465264 its reverse (462564510515), we get a palindrome (977579975779).

The spelling of 515015465264 in words is "five hundred fifteen billion, fifteen million, four hundred sixty-five thousand, two hundred sixty-four".