8401888309836 has 1152 divisors, whose sum is σ = 27016535605248. Its totient is φ = 2011806720000.

The previous prime is 8401888309817. The next prime is 8401888309907. The reversal of 8401888309836 is 6389038881048.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 39819375771 + ... + 39819375981.

It is an arithmetic number, because the mean of its divisors is an integer number (23451853824).

Almost surely, 2^{8401888309836} 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 8401888309836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13508267802624).

8401888309836 is an abundant number, since it is smaller than the sum of its proper divisors (18614647295412).

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

8401888309836 is a wasteful number, since it uses less digits than its factorization.

8401888309836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 66.

The spelling of 8401888309836 in words is "eight trillion, four hundred one billion, eight hundred eighty-eight million, three hundred nine thousand, eight hundred thirty-six".