26506726765 has 8 divisors (see below), whose sum is σ = 31826543328. Its totient is φ = 21193067280.

The previous prime is 26506726751. The next prime is 26506726789. The reversal of 26506726765 is 56762760562.

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

It is not a de Polignac number, because 26506726765 - 2²⁹ = 25969855853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529791 + ... + 1547020.

It is an arithmetic number, because the mean of its divisors is an integer number (3978317916).

Almost surely, 2^26506726765 is an apocalyptic number.

It is an amenable number.

26506726765 is a deficient number, since it is larger than the sum of its proper divisors (5319816563).

26506726765 is a wasteful number, since it uses less digits than its factorization.

26506726765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078539.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 26506726765 in words is "twenty-six billion, five hundred six million, seven hundred twenty-six thousand, seven hundred sixty-five".