10878121240 has 64 divisors (see below), whose sum is σ = 28081339200. Its totient is φ = 3715104768.

The previous prime is 10878121237. The next prime is 10878121259. The reversal of 10878121240 is 4212187801.

It is a junction number, because it is equal to n+sod(n) for n = 10878121196 and 10878121205.

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, 3625 + ... + 147544.

It is an arithmetic number, because the mean of its divisors is an integer number (438770925).

Almost surely, 2^10878121240 is an apocalyptic number.

10878121240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10878121240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14040669600).

10878121240 is an abundant number, since it is smaller than the sum of its proper divisors (17203217960).

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

10878121240 is a wasteful number, since it uses less digits than its factorization.

10878121240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151444 (or 151440 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The spelling of 10878121240 in words is "ten billion, eight hundred seventy-eight million, one hundred twenty-one thousand, two hundred forty".