8471631540 has 48 divisors (see below), whose sum is σ = 23955442560. Its totient is φ = 2236732800.

The previous prime is 8471631527. The next prime is 8471631551. The reversal of 8471631540 is 451361748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692920 + ... + 705039.

It is an arithmetic number, because the mean of its divisors is an integer number (499071720).

Almost surely, 2^8471631540 is an apocalyptic number.

It is an amenable number.

8471631540 is an abundant number, since it is smaller than the sum of its proper divisors (15483811020).

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

8471631540 is a wasteful number, since it uses less digits than its factorization.

8471631540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398072 (or 1398070 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 8471631540 is about 92041.4664159584. The cubic root of 8471631540 is about 2038.5546230327.

The spelling of 8471631540 in words is "eight billion, four hundred seventy-one million, six hundred thirty-one thousand, five hundred forty".