232138439064 has 96 divisors (see below), whose sum is σ = 741701975040. Its totient is φ = 64185739200.

The previous prime is 232138439047. The next prime is 232138439081. The reversal of 232138439064 is 460934831232.

232138439064 is a `hidden beast` number, since 23 + 2 + 138 + 439 + 0 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (232138439047) and next prime (232138439081).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7413282 + ... + 7444529.

It is an arithmetic number, because the mean of its divisors is an integer number (7726062240).

Almost surely, 2^232138439064 is an apocalyptic number.

232138439064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

232138439064 is an abundant number, since it is smaller than the sum of its proper divisors (509563535976).

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

232138439064 is a wasteful number, since it uses less digits than its factorization.

232138439064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14857861 (or 14857854 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 232138439064 in words is "two hundred thirty-two billion, one hundred thirty-eight million, four hundred thirty-nine thousand, sixty-four".