515049309000 has 192 divisors, whose sum is σ = 1800897462000. Its totient is φ = 132610329600.

The previous prime is 515049308989. The next prime is 515049309017. The reversal of 515049309000 is 903940515.

It can be written as a sum of positive squares in 8 ways, for example, as 57372704676 + 457676604324 = 239526^2 + 676518^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 725685 + ... + 1247684.

Almost surely, 2^515049309000 is an apocalyptic number.

515049309000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

515049309000 is an abundant number, since it is smaller than the sum of its proper divisors (1285848153000).

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

515049309000 is a wasteful number, since it uses less digits than its factorization.

515049309000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973425 (or 1973408 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The spelling of 515049309000 in words is "five hundred fifteen billion, forty-nine million, three hundred nine thousand".