515507847047 has 2 divisors, whose sum is σ = 515507847048. Its totient is φ = 515507847046.

The previous prime is 515507847037. The next prime is 515507847067. The reversal of 515507847047 is 740748705515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 515507847047 - 2¹⁸ = 515507584903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 515507847047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515507847037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257753923523 + 257753923524.

It is an arithmetic number, because the mean of its divisors is an integer number (257753923524).

Almost surely, 2^515507847047 is an apocalyptic number.

515507847047 is a deficient number, since it is larger than the sum of its proper divisors (1).

515507847047 is an equidigital number, since it uses as much as digits as its factorization.

515507847047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488000, while the sum is 53.

The spelling of 515507847047 in words is "five hundred fifteen billion, five hundred seven million, eight hundred forty-seven thousand, forty-seven".