25276565683979 has 4 divisors (see below), whose sum is σ = 25289521383360. Its totient is φ = 25263609984600.

The previous prime is 25276565683969. The next prime is 25276565683987. The reversal of 25276565683979 is 97938656567252.

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 25276565683979 - 2⁸ = 25276565683723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25276565683969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6477846764 + ... + 6477850665.

It is an arithmetic number, because the mean of its divisors is an integer number (6322380345840).

Almost surely, 2^{25276565683979} is an apocalyptic number.

25276565683979 is a deficient number, since it is larger than the sum of its proper divisors (12955699381).

25276565683979 is a wasteful number, since it uses less digits than its factorization.

25276565683979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12955699380.

The product of its digits is 10287648000, while the sum is 80.

The spelling of 25276565683979 in words is "twenty-five trillion, two hundred seventy-six billion, five hundred sixty-five million, six hundred eighty-three thousand, nine hundred seventy-nine".