11234567788890 has 64 divisors (see below), whose sum is σ = 26996827737600. Its totient is φ = 2992124176704.

The previous prime is 11234567788889. The next prime is 11234567788949. The reversal of 11234567788890 is 9888776543211.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83139801 + ... + 83274819.

It is an arithmetic number, because the mean of its divisors is an integer number (421825433400).

It is a 2-persistent number, because it is pandigital, and so is 2⋅11234567788890 = 22469135577780, but 3⋅11234567788890 = 33703703366670 is not.

Almost surely, 2^{11234567788890} is an apocalyptic number.

11234567788890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11234567788890 is an abundant number, since it is smaller than the sum of its proper divisors (15762259948710).

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

11234567788890 is a wasteful number, since it uses less digits than its factorization.

11234567788890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138491.

The product of its (nonzero) digits is 162570240, while the sum is 69.

The spelling of 11234567788890 in words is "eleven trillion, two hundred thirty-four billion, five hundred sixty-seven million, seven hundred eighty-eight thousand, eight hundred ninety".