26453121723 has 24 divisors (see below), whose sum is σ = 45588148560. Its totient is φ = 15116068800.

The previous prime is 26453121703. The next prime is 26453121727. The reversal of 26453121723 is 32712135462.

26453121723 is a `hidden beast` number, since 2 + 645 + 3 + 1 + 2 + 1 + 7 + 2 + 3 = 666.

It is not a de Polignac number, because 26453121723 - 2¹⁴ = 26453105339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26453121727) 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 23 ways as a sum of consecutive naturals, for example, 9996078 + ... + 9998723.

It is an arithmetic number, because the mean of its divisors is an integer number (1899506190).

Almost surely, 2^26453121723 is an apocalyptic number.

26453121723 is a deficient number, since it is larger than the sum of its proper divisors (19135026837).

26453121723 is a wasteful number, since it uses less digits than its factorization.

26453121723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19994824 (or 19994811 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The spelling of 26453121723 in words is "twenty-six billion, four hundred fifty-three million, one hundred twenty-one thousand, seven hundred twenty-three".