425581306445376 has 224 divisors, whose sum is σ = 1317275525260800. Its totient is φ = 134363856499200.

The previous prime is 425581306445341. The next prime is 425581306445437. The reversal of 425581306445376 is 673544603185524.

It is a happy number.

425581306445376 is a `hidden beast` number, since 4 + 2 + 5 + 5 + 8 + 1 + 30 + 64 + 4 + 537 + 6 = 666.

It is a super-2 number, since 2×425581306445376² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144679111 + ... + 147591353.

It is an arithmetic number, because the mean of its divisors is an integer number (5880694309200).

Almost surely, 2^{425581306445376} 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 425581306445376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658637762630400).

425581306445376 is an abundant number, since it is smaller than the sum of its proper divisors (891694218815424).

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

425581306445376 is a wasteful number, since it uses less digits than its factorization.

425581306445376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916734 (or 2916718 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 63.

The spelling of 425581306445376 in words is "four hundred twenty-five trillion, five hundred eighty-one billion, three hundred six million, four hundred forty-five thousand, three hundred seventy-six".