2512516731667 has 4 divisors (see below), whose sum is σ = 2512778107840. Its totient is φ = 2512255355496.

The previous prime is 2512516731649. The next prime is 2512516731679. The reversal of 2512516731667 is 7661376152152.

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

It is a cyclic number.

It is not a de Polignac number, because 2512516731667 - 2¹⁹ = 2512516207379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512516731617) 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, 130673667 + ... + 130692892.

It is an arithmetic number, because the mean of its divisors is an integer number (628194526960).

Almost surely, 2^{2512516731667} is an apocalyptic number.

2512516731667 is a deficient number, since it is larger than the sum of its proper divisors (261376173).

2512516731667 is an equidigital number, since it uses as much as digits as its factorization.

2512516731667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261376172.

The product of its digits is 3175200, while the sum is 52.

The spelling of 2512516731667 in words is "two trillion, five hundred twelve billion, five hundred sixteen million, seven hundred thirty-one thousand, six hundred sixty-seven".