8141721770432 has 112 divisors (see below), whose sum is σ = 17557658234880. Its totient is φ = 3732722611200.

The previous prime is 8141721770353. The next prime is 8141721770453. The reversal of 8141721770432 is 2340771271418.

It is a happy number.

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, 8119757 + ... + 9067187.

Almost surely, 2^{8141721770432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8141721770432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8778829117440).

8141721770432 is an abundant number, since it is smaller than the sum of its proper divisors (9415936464448).

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

8141721770432 is a wasteful number, since it uses less digits than its factorization.

8141721770432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947690 (or 947680 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 8141721770432 in words is "eight trillion, one hundred forty-one billion, seven hundred twenty-one million, seven hundred seventy thousand, four hundred thirty-two".