2512665662047 has 4 divisors (see below), whose sum is σ = 2512721468536. Its totient is φ = 2512609855560.

The previous prime is 2512665661969. The next prime is 2512665662057. The reversal of 2512665662047 is 7402665662152.

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-2512665662047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2512665661985 and 2512665662003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512665662057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27835653 + ... + 27925774.

It is an arithmetic number, because the mean of its divisors is an integer number (628180367134).

Almost surely, 2^{2512665662047} is an apocalyptic number.

2512665662047 is a deficient number, since it is larger than the sum of its proper divisors (55806489).

2512665662047 is an equidigital number, since it uses as much as digits as its factorization.

2512665662047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55806488.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 2512665662047 in words is "two trillion, five hundred twelve billion, six hundred sixty-five million, six hundred sixty-two thousand, forty-seven".