26238728923 has 16 divisors (see below), whose sum is σ = 30158608896. Its totient is φ = 22594746240.

The previous prime is 26238728909. The next prime is 26238728947. The reversal of 26238728923 is 32982783262.

It is not a de Polignac number, because 26238728923 - 2¹⁷ = 26238597851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26238728123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477390 + ... + 529507.

It is an arithmetic number, because the mean of its divisors is an integer number (1884913056).

Almost surely, 2^26238728923 is an apocalyptic number.

26238728923 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

26238728923 is a deficient number, since it is larger than the sum of its proper divisors (3919879973).

26238728923 is a wasteful number, since it uses less digits than its factorization.

26238728923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007034.

The product of its digits is 3483648, while the sum is 52.

It can be divided in two parts, 26238 and 728923, that added together give a square (755161 = 869²).

The spelling of 26238728923 in words is "twenty-six billion, two hundred thirty-eight million, seven hundred twenty-eight thousand, nine hundred twenty-three".