515460265040 has 40 divisors (see below), whose sum is σ = 1369651562880. Its totient is φ = 176729233536.

The previous prime is 515460265039. The next prime is 515460265057. The reversal of 515460265040 is 40562064515.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 515460264985 and 515460265003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460231820 + ... + 460232939.

It is an arithmetic number, because the mean of its divisors is an integer number (34241289072).

Almost surely, 2^515460265040 is an apocalyptic number.

It is an amenable number.

515460265040 is an abundant number, since it is smaller than the sum of its proper divisors (854191297840).

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

515460265040 is a wasteful number, since it uses less digits than its factorization.

515460265040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920464779 (or 920464773 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 515460265040 in words is "five hundred fifteen billion, four hundred sixty million, two hundred sixty-five thousand, forty".