26400125129 has 16 divisors (see below), whose sum is σ = 31987075968. Its totient is φ = 21270442752.

The previous prime is 26400125119. The next prime is 26400125153. The reversal of 26400125129 is 92152100462.

It is a cyclic number.

It is not a de Polignac number, because 26400125129 - 2⁴ = 26400125113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26400125095 and 26400125104.

It is not an unprimeable number, because it can be changed into a prime (26400125119) 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, 47294 + ... + 234599.

It is an arithmetic number, because the mean of its divisors is an integer number (1999192248).

Almost surely, 2^26400125129 is an apocalyptic number.

It is an amenable number.

26400125129 is a deficient number, since it is larger than the sum of its proper divisors (5586950839).

26400125129 is a wasteful number, since it uses less digits than its factorization.

26400125129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282704.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 26400125129 in words is "twenty-six billion, four hundred million, one hundred twenty-five thousand, one hundred twenty-nine".