260856085851 has 32 divisors (see below), whose sum is σ = 389334643200. Its totient is φ = 172611142560.

The previous prime is 260856085849. The next prime is 260856085879. The reversal of 260856085851 is 158580658062.

260856085851 is a `hidden beast` number, since 2 + 6 + 0 + 8 + 56 + 0 + 8 + 585 + 1 = 666.

It is not a de Polignac number, because 260856085851 - 2¹ = 260856085849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260856085801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2564770 + ... + 2664536.

It is an arithmetic number, because the mean of its divisors is an integer number (12166707600).

Almost surely, 2^260856085851 is an apocalyptic number.

260856085851 is a deficient number, since it is larger than the sum of its proper divisors (128478557349).

260856085851 is a wasteful number, since it uses less digits than its factorization.

260856085851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100496 (or 100490 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 260856085851 in words is "two hundred sixty billion, eight hundred fifty-six million, eighty-five thousand, eight hundred fifty-one".