7897800851 has 8 divisors (see below), whose sum is σ = 8337439680. Its totient is φ = 7460558568.

The previous prime is 7897800821. The next prime is 7897800919. The reversal of 7897800851 is 1580087987.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7897800851 - 2¹⁰ = 7897799827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7897800793 and 7897800802.

It is not an unprimeable number, because it can be changed into a prime (7897800821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592361 + ... + 605546.

It is an arithmetic number, because the mean of its divisors is an integer number (1042179960).

Almost surely, 2^7897800851 is an apocalyptic number.

7897800851 is a deficient number, since it is larger than the sum of its proper divisors (439638829).

7897800851 is a wasteful number, since it uses less digits than its factorization.

7897800851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198273.

The product of its (nonzero) digits is 1128960, while the sum is 53.

The square root of 7897800851 is about 88869.5721324234. The cubic root of 7897800851 is about 1991.4468784485.

The spelling of 7897800851 in words is "seven billion, eight hundred ninety-seven million, eight hundred thousand, eight hundred fifty-one".