26025172993 has 32 divisors (see below), whose sum is σ = 29549577600. Its totient is φ = 22771961856.

The previous prime is 26025172991. The next prime is 26025173017. The reversal of 26025172993 is 39927152062.

It is not a de Polignac number, because 26025172993 - 2¹ = 26025172991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26025172991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18160605 + ... + 18162037.

It is an arithmetic number, because the mean of its divisors is an integer number (923424300).

Almost surely, 2^26025172993 is an apocalyptic number.

It is an amenable number.

26025172993 is a deficient number, since it is larger than the sum of its proper divisors (3524404607).

26025172993 is a wasteful number, since it uses less digits than its factorization.

26025172993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 26025172993 in words is "twenty-six billion, twenty-five million, one hundred seventy-two thousand, nine hundred ninety-three".