26146673825 has 6 divisors (see below), whose sum is σ = 32421875574. Its totient is φ = 20917339040.

The previous prime is 26146673807. The next prime is 26146673827. The reversal of 26146673825 is 52837664162.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 490002496 + 25656671329 = 22136^2 + 160177^2 .

It is not a de Polignac number, because 26146673825 - 2¹⁶ = 26146608289 is a prime.

It is a super-2 number, since 2×26146673825² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26146673827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522933452 + ... + 522933501.

It is an arithmetic number, because the mean of its divisors is an integer number (5403645929).

Almost surely, 2^26146673825 is an apocalyptic number.

26146673825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26146673825 is a deficient number, since it is larger than the sum of its proper divisors (6275201749).

26146673825 is a wasteful number, since it uses less digits than its factorization.

26146673825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045866963 (or 1045866958 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 26146673825 in words is "twenty-six billion, one hundred forty-six million, six hundred seventy-three thousand, eight hundred twenty-five".