25912932979 has 2 divisors, whose sum is σ = 25912932980. Its totient is φ = 25912932978.

The previous prime is 25912932973. The next prime is 25912933051. The reversal of 25912932979 is 97923921952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25912932979 - 2¹¹ = 25912930931 is a prime.

It is not a weakly prime, because it can be changed into another prime (25912932973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12956466489 + 12956466490.

It is an arithmetic number, because the mean of its divisors is an integer number (12956466490).

Almost surely, 2^25912932979 is an apocalyptic number.

25912932979 is a deficient number, since it is larger than the sum of its proper divisors (1).

25912932979 is an equidigital number, since it uses as much as digits as its factorization.

25912932979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 58.

The spelling of 25912932979 in words is "twenty-five billion, nine hundred twelve million, nine hundred thirty-two thousand, nine hundred seventy-nine".