26404453731 has 8 divisors (see below), whose sum is σ = 35206731280. Its totient is φ = 17602572672.

The previous prime is 26404453693. The next prime is 26404453739. The reversal of 26404453731 is 13735440462.

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

It is not a de Polignac number, because 26404453731 - 2¹⁰ = 26404452707 is a prime.

It is a super-2 number, since 2×26404453731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26404453731.

It is not an unprimeable number, because it can be changed into a prime (26404453739) 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, 135831 + ... + 266943.

It is an arithmetic number, because the mean of its divisors is an integer number (4400841410).

Almost surely, 2^26404453731 is an apocalyptic number.

26404453731 is a deficient number, since it is larger than the sum of its proper divisors (8802277549).

26404453731 is a wasteful number, since it uses less digits than its factorization.

26404453731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198245.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 26404453731 in words is "twenty-six billion, four hundred four million, four hundred fifty-three thousand, seven hundred thirty-one".