425218894380 has 360 divisors, whose sum is σ = 1642993849728. Its totient is φ = 91475371008.

The previous prime is 425218894319. The next prime is 425218894403. The reversal of 425218894380 is 83498812524.

425218894380 is a `hidden beast` number, since 4 + 2 + 521 + 8 + 89 + 4 + 38 + 0 = 666.

It is a super-2 number, since 2×425218894380² (a number of 24 digits) contains 22 as substring.

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 119 ways as a sum of consecutive naturals, for example, 1191909 + ... + 1507011.

Almost surely, 2^425218894380 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 425218894380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821496924864).

425218894380 is an abundant number, since it is smaller than the sum of its proper divisors (1217774955348).

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

425218894380 is a wasteful number, since it uses less digits than its factorization.

425218894380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315155 (or 315137 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 425218894380 in words is "four hundred twenty-five billion, two hundred eighteen million, eight hundred ninety-four thousand, three hundred eighty".