26312638345 has 16 divisors (see below), whose sum is σ = 36107250048. Its totient is φ = 18032279040.

The previous prime is 26312638307. The next prime is 26312638349. The reversal of 26312638345 is 54383621362.

It is not a de Polignac number, because 26312638345 - 2²³ = 26304249737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26312638349) 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, 162111 + ... + 280900.

It is an arithmetic number, because the mean of its divisors is an integer number (2256703128).

Almost surely, 2^26312638345 is an apocalyptic number.

It is an amenable number.

26312638345 is a deficient number, since it is larger than the sum of its proper divisors (9794611703).

26312638345 is a wasteful number, since it uses less digits than its factorization.

26312638345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444720.

The product of its digits is 622080, while the sum is 43.

The spelling of 26312638345 in words is "twenty-six billion, three hundred twelve million, six hundred thirty-eight thousand, three hundred forty-five".