7871180380 has 24 divisors (see below), whose sum is σ = 18890833248. Its totient is φ = 2698690368.

The previous prime is 7871180357. The next prime is 7871180393. The reversal of 7871180380 is 830811787.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28111219 + ... + 28111498.

It is an arithmetic number, because the mean of its divisors is an integer number (787118052).

Almost surely, 2^7871180380 is an apocalyptic number.

7871180380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7871180380 is an abundant number, since it is smaller than the sum of its proper divisors (11019652868).

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

7871180380 is a wasteful number, since it uses less digits than its factorization.

7871180380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56222733 (or 56222731 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 43.

The square root of 7871180380 is about 88719.6730156283. The cubic root of 7871180380 is about 1989.2068908392.

The spelling of 7871180380 in words is "seven billion, eight hundred seventy-one million, one hundred eighty thousand, three hundred eighty".