25928874737 has 2 divisors, whose sum is σ = 25928874738. Its totient is φ = 25928874736.

The previous prime is 25928874733. The next prime is 25928874767. The reversal of 25928874737 is 73747882952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23762530801 + 2166343936 = 154151^2 + 46544^2 .

It is a cyclic number.

It is not a de Polignac number, because 25928874737 - 2² = 25928874733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25928874737.

It is not a weakly prime, because it can be changed into another prime (25928874731) 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 as a sum of consecutive naturals, namely, 12964437368 + 12964437369.

It is an arithmetic number, because the mean of its divisors is an integer number (12964437369).

Almost surely, 2^25928874737 is an apocalyptic number.

It is an amenable number.

25928874737 is a deficient number, since it is larger than the sum of its proper divisors (1).

25928874737 is an equidigital number, since it uses as much as digits as its factorization.

25928874737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47416320, while the sum is 62.

The spelling of 25928874737 in words is "twenty-five billion, nine hundred twenty-eight million, eight hundred seventy-four thousand, seven hundred thirty-seven".