7865220832 has 48 divisors (see below), whose sum is σ = 18175056480. Its totient is φ = 3279702528.

The previous prime is 7865220821. The next prime is 7865220899. The reversal of 7865220832 is 2380225687.

It is a super-2 number, since 2×7865220832² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 466207 + ... + 482782.

It is an arithmetic number, because the mean of its divisors is an integer number (378647010).

Almost surely, 2^7865220832 is an apocalyptic number.

It is an amenable number.

7865220832 is an abundant number, since it is smaller than the sum of its proper divisors (10309835648).

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

7865220832 is a wasteful number, since it uses less digits than its factorization.

7865220832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949043 (or 949035 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 7865220832 is about 88686.0802606587. The cubic root of 7865220832 is about 1988.7047312086.

The spelling of 7865220832 in words is "seven billion, eight hundred sixty-five million, two hundred twenty thousand, eight hundred thirty-two".