425288283840 has 420 divisors, whose sum is σ = 1730073164688. Its totient is φ = 97145256960.

The previous prime is 425288283829. The next prime is 425288283857. The reversal of 425288283840 is 48382882524.

425288283840 is a `hidden beast` number, since 4 + 2 + 5 + 288 + 283 + 84 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (420).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 277783875 + ... + 277785405.

Almost surely, 2^425288283840 is an apocalyptic number.

425288283840 is a gapful number since it is divisible by the number (40) 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 425288283840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865036582344).

425288283840 is an abundant number, since it is smaller than the sum of its proper divisors (1304784880848).

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

425288283840 is an frugal number, since it uses more digits than its factorization.

425288283840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 7864320, while the sum is 54.

The spelling of 425288283840 in words is "four hundred twenty-five billion, two hundred eighty-eight million, two hundred eighty-three thousand, eight hundred forty".