8141621628 has 48 divisors (see below), whose sum is σ = 21725867520. Its totient is φ = 2324583744.

The previous prime is 8141621569. The next prime is 8141621629. The reversal of 8141621628 is 8261261418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8141621629) 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, 92953 + ... + 157871.

It is an arithmetic number, because the mean of its divisors is an integer number (452622240).

Almost surely, 2^8141621628 is an apocalyptic number.

It is an amenable number.

8141621628 is an abundant number, since it is smaller than the sum of its proper divisors (13584245892).

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

8141621628 is a wasteful number, since it uses less digits than its factorization.

8141621628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66426 (or 66424 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 8141621628 is about 90230.9349835188. The cubic root of 8141621628 is about 2011.7328379949.

The spelling of 8141621628 in words is "eight billion, one hundred forty-one million, six hundred twenty-one thousand, six hundred twenty-eight".