260878497791 has 8 divisors (see below), whose sum is σ = 261723596400. Its totient is φ = 260033957568.

The previous prime is 260878497721. The next prime is 260878497799. The reversal of 260878497791 is 197794878062.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260878497791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260878497799) 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, 806675 + ... + 1082811.

It is an arithmetic number, because the mean of its divisors is an integer number (32715449550).

Almost surely, 2^260878497791 is an apocalyptic number.

260878497791 is a deficient number, since it is larger than the sum of its proper divisors (845098609).

260878497791 is a wasteful number, since it uses less digits than its factorization.

260878497791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279193.

The product of its (nonzero) digits is 85349376, while the sum is 68.

The spelling of 260878497791 in words is "two hundred sixty billion, eight hundred seventy-eight million, four hundred ninety-seven thousand, seven hundred ninety-one".