8780425920 has 784 divisors, whose sum is σ = 37845431040. Its totient is φ = 1894606848.

The previous prime is 8780425909. The next prime is 8780425937. The reversal of 8780425920 is 295240878.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 31026099 + ... + 31026381.

Almost surely, 2^8780425920 is an apocalyptic number.

8780425920 is a gapful number since it is divisible by the number (80) 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 8780425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18922715520).

8780425920 is an abundant number, since it is smaller than the sum of its proper divisors (29065005120).

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

8780425920 is a wasteful number, since it uses less digits than its factorization.

8780425920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 8780425920 is about 93703.9269187797. The cubic root of 8780425920 is about 2063.0283420007.

The spelling of 8780425920 in words is "eight billion, seven hundred eighty million, four hundred twenty-five thousand, nine hundred twenty".