26715949547 has 16 divisors (see below), whose sum is σ = 30776163840. Its totient is φ = 22716875328.

The previous prime is 26715949543. The next prime is 26715949549. The reversal of 26715949547 is 74594951762.

It is a happy number.

It is not a de Polignac number, because 26715949547 - 2² = 26715949543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26715949543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1544018 + ... + 1561224.

It is an arithmetic number, because the mean of its divisors is an integer number (1923510240).

Almost surely, 2^26715949547 is an apocalyptic number.

26715949547 is a deficient number, since it is larger than the sum of its proper divisors (4060214293).

26715949547 is a wasteful number, since it uses less digits than its factorization.

26715949547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18970.

The product of its digits is 19051200, while the sum is 59.

The spelling of 26715949547 in words is "twenty-six billion, seven hundred fifteen million, nine hundred forty-nine thousand, five hundred forty-seven".