7851852646 has 16 divisors (see below), whose sum is σ = 12895907328. Its totient is φ = 3555851400.

The previous prime is 7851852643. The next prime is 7851852653. The reversal of 7851852646 is 6462581587.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7851852593 and 7851852602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7851852643) 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, 652530 + ... + 664453.

It is an arithmetic number, because the mean of its divisors is an integer number (805994208).

Almost surely, 2^7851852646 is an apocalyptic number.

7851852646 is a deficient number, since it is larger than the sum of its proper divisors (5044054682).

7851852646 is a wasteful number, since it uses less digits than its factorization.

7851852646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317267.

The product of its digits is 3225600, while the sum is 52.

The square root of 7851852646 is about 88610.6802027837. The cubic root of 7851852646 is about 1987.5773862568.

The spelling of 7851852646 in words is "seven billion, eight hundred fifty-one million, eight hundred fifty-two thousand, six hundred forty-six".