26257064723 has 8 divisors (see below), whose sum is σ = 28193171040. Its totient is φ = 24364466560.

The previous prime is 26257064681. The next prime is 26257064747. The reversal of 26257064723 is 32746075262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26257064723 - 2¹⁴ = 26257048339 is a prime.

It is a super-2 number, since 2×26257064723² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26257064773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10875788 + ... + 10878201.

It is an arithmetic number, because the mean of its divisors is an integer number (3524146380).

Almost surely, 2^26257064723 is an apocalyptic number.

26257064723 is a deficient number, since it is larger than the sum of its proper divisors (1936106317).

26257064723 is a wasteful number, since it uses less digits than its factorization.

26257064723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21754077.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 26257064723 in words is "twenty-six billion, two hundred fifty-seven million, sixty-four thousand, seven hundred twenty-three".