515157872144 has 20 divisors (see below), whose sum is σ = 1000684246380. Its totient is φ = 256916776320.

The previous prime is 515157872129. The next prime is 515157872167. The reversal of 515157872144 is 441278751515.

It can be written as a sum of positive squares in 2 ways, for example, as 233663958544 + 281493913600 = 483388^2 + 530560^2 .

It is a junction number, because it is equal to n+sod(n) for n = 515157872092 and 515157872101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41378567 + ... + 41391014.

It is an arithmetic number, because the mean of its divisors is an integer number (50034212319).

Almost surely, 2^515157872144 is an apocalyptic number.

It is an amenable number.

515157872144 is a deficient number, since it is larger than the sum of its proper divisors (485526374236).

515157872144 is a wasteful number, since it uses less digits than its factorization.

515157872144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82769978 (or 82769972 counting only the distinct ones).

The product of its digits is 1568000, while the sum is 50.

The spelling of 515157872144 in words is "five hundred fifteen billion, one hundred fifty-seven million, eight hundred seventy-two thousand, one hundred forty-four".