8881278819790 has 64 divisors (see below), whose sum is σ = 18288102659904. Its totient is φ = 3076291381248.

The previous prime is 8881278819779. The next prime is 8881278819793. The reversal of 8881278819790 is 979188721888.

8881278819790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8881278819790² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8881278819793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5866609 + ... + 7223548.

It is an arithmetic number, because the mean of its divisors is an integer number (285751604061).

Almost surely, 2^{8881278819790} is an apocalyptic number.

8881278819790 is an abundant number, since it is smaller than the sum of its proper divisors (9406823840114).

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

8881278819790 is a wasteful number, since it uses less digits than its factorization.

8881278819790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13090501.

The product of its (nonzero) digits is 260112384, while the sum is 76.

The spelling of 8881278819790 in words is "eight trillion, eight hundred eighty-one billion, two hundred seventy-eight million, eight hundred nineteen thousand, seven hundred ninety".