523432138506 has 16 divisors (see below), whose sum is σ = 1051035054048. Its totient is φ = 173782250000.

The previous prime is 523432138457. The next prime is 523432138507. The reversal of 523432138506 is 605831234325.

It is not an unprimeable number, because it can be changed into a prime (523432138507) 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, 173780745 + ... + 173783756.

It is an arithmetic number, because the mean of its divisors is an integer number (65689690878).

Almost surely, 2^523432138506 is an apocalyptic number.

523432138506 is an abundant number, since it is smaller than the sum of its proper divisors (527602915542).

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

523432138506 is a wasteful number, since it uses less digits than its factorization.

523432138506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347564757.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 523432138506 in words is "five hundred twenty-three billion, four hundred thirty-two million, one hundred thirty-eight thousand, five hundred six".