26457025777129 has 4 divisors (see below), whose sum is σ = 26459271144576. Its totient is φ = 26454780409684.

The previous prime is 26457025777109. The next prime is 26457025777139. The reversal of 26457025777129 is 92177752075462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26457025777129 - 2⁴³ = 17660932754921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26457025777109) 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, 1122666049 + ... + 1122689614.

It is an arithmetic number, because the mean of its divisors is an integer number (6614817786144).

Almost surely, 2^{26457025777129} is an apocalyptic number.

It is an amenable number.

26457025777129 is a deficient number, since it is larger than the sum of its proper divisors (2245367447).

26457025777129 is a wasteful number, since it uses less digits than its factorization.

26457025777129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245367446.

The product of its (nonzero) digits is 103723200, while the sum is 64.

The spelling of 26457025777129 in words is "twenty-six trillion, four hundred fifty-seven billion, twenty-five million, seven hundred seventy-seven thousand, one hundred twenty-nine".