8371711980 has 144 divisors (see below), whose sum is σ = 27169615200. Its totient is φ = 2080235520.

The previous prime is 8371711979. The next prime is 8371711981. The reversal of 8371711980 is 891171738.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8371711979) and next prime (8371711981).

It is a super-2 number, since 2×8371711980² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8371711981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188556 + ... + 228684.

Almost surely, 2^8371711980 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 8371711980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13584807600).

8371711980 is an abundant number, since it is smaller than the sum of its proper divisors (18797903220).

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

8371711980 is a wasteful number, since it uses less digits than its factorization.

8371711980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40224 (or 40219 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 45.

The square root of 8371711980 is about 91497.0599527657. The cubic root of 8371711980 is about 2030.5082552096.

The spelling of 8371711980 in words is "eight billion, three hundred seventy-one million, seven hundred eleven thousand, nine hundred eighty".