8381172480 has 144 divisors (see below), whose sum is σ = 27044523744. Its totient is φ = 2211840000.

The previous prime is 8381172473. The next prime is 8381172487. The reversal of 8381172480 is 842711838.

It is an interprime number because it is at equal distance from previous prime (8381172473) and next prime (8381172487).

It is not an unprimeable number, because it can be changed into a prime (8381172487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361230 + ... + 383730.

Almost surely, 2^8381172480 is an apocalyptic number.

8381172480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8381172480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13522261872).

8381172480 is an abundant number, since it is smaller than the sum of its proper divisors (18663351264).

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

8381172480 is a wasteful number, since it uses less digits than its factorization.

8381172480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22622 (or 22608 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 8381172480 is about 91548.7437379673. The cubic root of 8381172480 is about 2031.2728296858.

The spelling of 8381172480 in words is "eight billion, three hundred eighty-one million, one hundred seventy-two thousand, four hundred eighty".