425820194742720 has 448 divisors, whose sum is σ = 1375596349940736. Its totient is φ = 111580369551360.

The previous prime is 425820194742671. The next prime is 425820194742721. The reversal of 425820194742720 is 27247491028524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425820194742721) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 77043636597 + ... + 77043642123.

It is an arithmetic number, because the mean of its divisors is an integer number (3070527566832).

Almost surely, 2^{425820194742720} is an apocalyptic number.

425820194742720 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 425820194742720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687798174970368).

425820194742720 is an abundant number, since it is smaller than the sum of its proper divisors (949776155198016).

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

425820194742720 is a wasteful number, since it uses less digits than its factorization.

425820194742720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508 (or 9498 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 57.

The spelling of 425820194742720 in words is "four hundred twenty-five trillion, eight hundred twenty billion, one hundred ninety-four million, seven hundred forty-two thousand, seven hundred twenty".