860251000251 has 4 divisors (see below), whose sum is σ = 1147001333672. Its totient is φ = 573500666832.

The previous prime is 860251000249. The next prime is 860251000291. The reversal of 860251000251 is 152000152068.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 860251000251 - 2¹ = 860251000249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860251000291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143375166706 + ... + 143375166711.

It is an arithmetic number, because the mean of its divisors is an integer number (286750333418).

Almost surely, 2^860251000251 is an apocalyptic number.

860251000251 is a deficient number, since it is larger than the sum of its proper divisors (286750333421).

860251000251 is a wasteful number, since it uses less digits than its factorization.

860251000251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286750333420.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 860251000251 in words is "eight hundred sixty billion, two hundred fifty-one million, two hundred fifty-one", and thus it is an aban number.