512996198399 has 4 divisors (see below), whose sum is σ = 520221497040. Its totient is φ = 505770899760.

The previous prime is 512996198339. The next prime is 512996198401. The reversal of 512996198399 is 993891699215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512996198399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71), and also a Moran number because the ratio is a prime number: 7225298569 = 512996198399 / (5 + 1 + 2 + 9 + 9 + 6 + 1 + 9 + 8 + 3 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512996198339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3612649214 + ... + 3612649355.

It is an arithmetic number, because the mean of its divisors is an integer number (130055374260).

Almost surely, 2^512996198399 is an apocalyptic number.

512996198399 is a deficient number, since it is larger than the sum of its proper divisors (7225298641).

512996198399 is an equidigital number, since it uses as much as digits as its factorization.

512996198399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225298640.

The product of its digits is 85030560, while the sum is 71.

The spelling of 512996198399 in words is "five hundred twelve billion, nine hundred ninety-six million, one hundred ninety-eight thousand, three hundred ninety-nine".