425959043840 has 144 divisors (see below), whose sum is σ = 1113554766240. Its totient is φ = 154825359360.

The previous prime is 425959043773. The next prime is 425959043891. The reversal of 425959043840 is 48340959524.

It is a super-2 number, since 2×425959043840² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40221266 + ... + 40231854.

It is an arithmetic number, because the mean of its divisors is an integer number (7733019210).

Almost surely, 2^425959043840 is an apocalyptic number.

425959043840 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 425959043840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556777383120).

425959043840 is an abundant number, since it is smaller than the sum of its proper divisors (687595722400).

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

425959043840 is a wasteful number, since it uses less digits than its factorization.

425959043840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13478 (or 13464 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 425959043840 in words is "four hundred twenty-five billion, nine hundred fifty-nine million, forty-three thousand, eight hundred forty".