26791880545 has 8 divisors (see below), whose sum is σ = 32158923840. Its totient is φ = 21427726320.

The previous prime is 26791880543. The next prime is 26791880551. The reversal of 26791880545 is 54508819762.

It is a happy number.

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

It is not a de Polignac number, because 26791880545 - 2¹ = 26791880543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26791880543) 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, 701811 + ... + 739000.

It is an arithmetic number, because the mean of its divisors is an integer number (4019865480).

Almost surely, 2^26791880545 is an apocalyptic number.

It is an amenable number.

26791880545 is a deficient number, since it is larger than the sum of its proper divisors (5367043295).

26791880545 is a wasteful number, since it uses less digits than its factorization.

26791880545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444535.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 26791880545 in words is "twenty-six billion, seven hundred ninety-one million, eight hundred eighty thousand, five hundred forty-five".