4031423666520 has 64 divisors (see below), whose sum is σ = 12139231212000. Its totient is φ = 1071049847808.

The previous prime is 4031423666513. The next prime is 4031423666531. The reversal of 4031423666520 is 256663241304.

It is a happy number.

4031423666520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 62412325 + ... + 62476884.

Almost surely, 2^{4031423666520} is an apocalyptic number.

4031423666520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4031423666520 is an abundant number, since it is smaller than the sum of its proper divisors (8107807545480).

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

4031423666520 is a wasteful number, since it uses less digits than its factorization.

4031423666520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124889492 (or 124889488 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 4031423666520 in words is "four trillion, thirty-one billion, four hundred twenty-three million, six hundred sixty-six thousand, five hundred twenty".