7851143982 has 16 divisors (see below), whose sum is σ = 17129768832. Its totient is φ = 2379134520.

The previous prime is 7851143977. The next prime is 7851144011. The reversal of 7851143982 is 2893411587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59478298 + ... + 59478429.

It is an arithmetic number, because the mean of its divisors is an integer number (1070610552).

Almost surely, 2^7851143982 is an apocalyptic number.

7851143982 is an abundant number, since it is smaller than the sum of its proper divisors (9278624850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7851143982 is a wasteful number, since it uses less digits than its factorization.

7851143982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118956743.

The product of its digits is 483840, while the sum is 48.

The square root of 7851143982 is about 88606.6813620734. The cubic root of 7851143982 is about 1987.5175886106.

The spelling of 7851143982 in words is "seven billion, eight hundred fifty-one million, one hundred forty-three thousand, nine hundred eighty-two".