425329357824 has 198 divisors, whose sum is σ = 1428641711874. Its totient is φ = 121522544640.

The previous prime is 425329357811. The next prime is 425329357829. The reversal of 425329357824 is 428753923524.

425329357824 is a `hidden beast` number, since 4 + 2 + 532 + 9 + 35 + 78 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 424895385600 + 433972224 = 651840^2 + 20832^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425329357829) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19347 + ... + 922514.

Almost surely, 2^425329357824 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 425329357824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714320855937).

425329357824 is an abundant number, since it is smaller than the sum of its proper divisors (1003312354050).

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

425329357824 is a wasteful number, since it uses less digits than its factorization.

425329357824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941901 (or 941873 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

It can be divided in two parts, 42532 and 9357824, that added together give a square (9400356 = 3066²).

The spelling of 425329357824 in words is "four hundred twenty-five billion, three hundred twenty-nine million, three hundred fifty-seven thousand, eight hundred twenty-four".