8425889280 has 480 divisors, whose sum is σ = 30886023168. Its totient is φ = 2119680000.

The previous prime is 8425889273. The next prime is 8425889291. The reversal of 8425889280 is 829885248.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×8425889280² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33569155 + ... + 33569405.

Almost surely, 2^8425889280 is an apocalyptic number.

8425889280 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 8425889280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15443011584).

8425889280 is an abundant number, since it is smaller than the sum of its proper divisors (22460133888).

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

8425889280 is a wasteful number, since it uses less digits than its factorization.

8425889280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The square root of 8425889280 is about 91792.6428424414. The cubic root of 8425889280 is about 2034.8789662132.

The spelling of 8425889280 in words is "eight billion, four hundred twenty-five million, eight hundred eighty-nine thousand, two hundred eighty".