425431535243420 has 24 divisors (see below), whose sum is σ = 893407629038064. Its totient is φ = 170172346473216.

The previous prime is 425431535243369. The next prime is 425431535243423. The reversal of 425431535243420 is 24342535134524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425431535243423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3433634 + ... + 29370953.

It is an arithmetic number, because the mean of its divisors is an integer number (37225317876586).

Almost surely, 2^{425431535243420} is an apocalyptic number.

It is an amenable number.

425431535243420 is an abundant number, since it is smaller than the sum of its proper divisors (467976093794644).

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

425431535243420 is a wasteful number, since it uses less digits than its factorization.

425431535243420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33453029 (or 33453027 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 47.

The spelling of 425431535243420 in words is "four hundred twenty-five trillion, four hundred thirty-one billion, five hundred thirty-five million, two hundred forty-three thousand, four hundred twenty".