10420938888 has 128 divisors (see below), whose sum is σ = 27398891520. Its totient is φ = 3299546880.

The previous prime is 10420938887. The next prime is 10420938907. The reversal of 10420938888 is 88883902401.

It is a happy number.

It is a Cunningham number, because it is equal to 102083²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 10420938888.

It is not an unprimeable number, because it can be changed into a prime (10420938887) 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, 8778631 + ... + 8779817.

It is an arithmetic number, because the mean of its divisors is an integer number (214053840).

Almost surely, 2^10420938888 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 10420938888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13699445760).

10420938888 is an abundant number, since it is smaller than the sum of its proper divisors (16977952632).

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

10420938888 is a wasteful number, since it uses less digits than its factorization.

10420938888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 10420938888 in words is "ten billion, four hundred twenty million, nine hundred thirty-eight thousand, eight hundred eighty-eight".