8471645436 has 48 divisors (see below), whose sum is σ = 19940326560. Its totient is φ = 2799206400.

The previous prime is 8471645383. The next prime is 8471645437. The reversal of 8471645436 is 6345461748.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8471645437) 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, 1260886 + ... + 1267586.

It is an arithmetic number, because the mean of its divisors is an integer number (415423470).

Almost surely, 2^8471645436 is an apocalyptic number.

It is an amenable number.

8471645436 is an abundant number, since it is smaller than the sum of its proper divisors (11468681124).

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

8471645436 is a wasteful number, since it uses less digits than its factorization.

8471645436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614 (or 7612 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The square root of 8471645436 is about 92041.5419036426. The cubic root of 8471645436 is about 2038.5557376444. Note that the first 3 decimals are identical.

The spelling of 8471645436 in words is "eight billion, four hundred seventy-one million, six hundred forty-five thousand, four hundred thirty-six".