7871192064 has 176 divisors, whose sum is σ = 24116935200. Its totient is φ = 2532999168.

The previous prime is 7871192033. The next prime is 7871192099. The reversal of 7871192064 is 4602911787.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796884 + ... + 806700.

Almost surely, 2^7871192064 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 7871192064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12058467600).

7871192064 is an abundant number, since it is smaller than the sum of its proper divisors (16245743136).

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

7871192064 is a wasteful number, since it uses less digits than its factorization.

7871192064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875 (or 9851 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 7871192064 is about 88719.7388634570. The cubic root of 7871192064 is about 1989.2078750999.

The spelling of 7871192064 in words is "seven billion, eight hundred seventy-one million, one hundred ninety-two thousand, sixty-four".