423521555001044 has 24 divisors (see below), whose sum is σ = 743544404174208. Its totient is φ = 211080321691200.

The previous prime is 423521555000977. The next prime is 423521555001047. The reversal of 423521555001044 is 440100555125324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 423521555000992 and 423521555001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423521555001047) 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, 65192069 + ... + 71393619.

It is an arithmetic number, because the mean of its divisors is an integer number (30981016840592).

Almost surely, 2^{423521555001044} is an apocalyptic number.

It is an amenable number.

423521555001044 is a deficient number, since it is larger than the sum of its proper divisors (320022849173164).

423521555001044 is a wasteful number, since it uses less digits than its factorization.

423521555001044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256415 (or 6256413 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 423521555001044 in words is "four hundred twenty-three trillion, five hundred twenty-one billion, five hundred fifty-five million, one thousand, forty-four".