7865959863 has 8 divisors (see below), whose sum is σ = 10489366000. Its totient is φ = 5243263488.

The previous prime is 7865959841. The next prime is 7865959879. The reversal of 7865959863 is 3689595687.

7865959863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7865959863 - 2¹⁰ = 7865958839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7865959794 and 7865959803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7865959063) 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, 151018 + ... + 196311.

It is an arithmetic number, because the mean of its divisors is an integer number (1311170750).

Almost surely, 2^7865959863 is an apocalyptic number.

7865959863 is a deficient number, since it is larger than the sum of its proper divisors (2623406137).

7865959863 is a wasteful number, since it uses less digits than its factorization.

7865959863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354881.

The product of its digits is 97977600, while the sum is 66.

The square root of 7865959863 is about 88690.2467185654. The cubic root of 7865959863 is about 1988.7670167416.

The spelling of 7865959863 in words is "seven billion, eight hundred sixty-five million, nine hundred fifty-nine thousand, eight hundred sixty-three".