8473272381 has 80 divisors (see below), whose sum is σ = 15135276288. Its totient is φ = 4618944000.

The previous prime is 8473272373. The next prime is 8473272383. The reversal of 8473272381 is 1832723748.

It is not a de Polignac number, because 8473272381 - 2³ = 8473272373 is a prime.

It is a super-2 number, since 2×8473272381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8473272383) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7054581 + ... + 7055781.

Almost surely, 2^8473272381 is an apocalyptic number.

8473272381 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8473272381 is a deficient number, since it is larger than the sum of its proper divisors (6662003907).

8473272381 is a wasteful number, since it uses less digits than its factorization.

8473272381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1775 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 8473272381 is about 92050.3795809664. The cubic root of 8473272381 is about 2038.6862280668.

The spelling of 8473272381 in words is "eight billion, four hundred seventy-three million, two hundred seventy-two thousand, three hundred eighty-one".