10420987900 has 54 divisors (see below), whose sum is σ = 23366759640. Its totient is φ = 4033893600.

The previous prime is 10420987897. The next prime is 10420987933. The reversal of 10420987900 is 978902401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 41881 + ... + 150319.

Almost surely, 2^10420987900 is an apocalyptic number.

10420987900 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 10420987900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11683379820).

10420987900 is an abundant number, since it is smaller than the sum of its proper divisors (12945771740).

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

10420987900 is a wasteful number, since it uses less digits than its factorization.

10420987900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108515 (or 108477 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 10420987900 in words is "ten billion, four hundred twenty million, nine hundred eighty-seven thousand, nine hundred".