7861072208 has 80 divisors (see below), whose sum is σ = 16938201600. Its totient is φ = 3504109440.

The previous prime is 7861072159. The next prime is 7861072213. The reversal of 7861072208 is 8022701687.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6427085 + ... + 6428307.

It is an arithmetic number, because the mean of its divisors is an integer number (211727520).

Almost surely, 2^7861072208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7861072208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8469100800).

7861072208 is an abundant number, since it is smaller than the sum of its proper divisors (9077129392).

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

7861072208 is a wasteful number, since it uses less digits than its factorization.

7861072208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 7861072208 is about 88662.6878004496. The cubic root of 7861072208 is about 1988.3550127297.

The spelling of 7861072208 in words is "seven billion, eight hundred sixty-one million, seventy-two thousand, two hundred eight".