25318112965949 has 16 divisors (see below), whose sum is σ = 26148630816000. Its totient is φ = 24498065130240.

The previous prime is 25318112965933. The next prime is 25318112965963. The reversal of 25318112965949 is 94956921181352.

It is a cyclic number.

It is not a de Polignac number, because 25318112965949 - 2⁴ = 25318112965933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25318112962949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4152302 + ... + 8238800.

It is an arithmetic number, because the mean of its divisors is an integer number (1634289426000).

Almost surely, 2^{25318112965949} is an apocalyptic number.

It is an amenable number.

25318112965949 is a deficient number, since it is larger than the sum of its proper divisors (830517850051).

25318112965949 is a wasteful number, since it uses less digits than its factorization.

25318112965949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087780.

The product of its digits is 41990400, while the sum is 65.

The spelling of 25318112965949 in words is "twenty-five trillion, three hundred eighteen billion, one hundred twelve million, nine hundred sixty-five thousand, nine hundred forty-nine".