232451265452520 has 128 divisors (see below), whose sum is σ = 734185202688000. Its totient is φ = 58714244225280.

The previous prime is 232451265452519. The next prime is 232451265452543. The reversal of 232451265452520 is 25254562154232.

It is a self number, because there is not a number n which added to its sum of digits gives 232451265452520.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4095121 + ... + 21947039.

It is an arithmetic number, because the mean of its divisors is an integer number (5735821896000).

Almost surely, 2^{232451265452520} is an apocalyptic number.

232451265452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232451265452520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367092601344000).

232451265452520 is an abundant number, since it is smaller than the sum of its proper divisors (501733937235480).

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

232451265452520 is a wasteful number, since it uses less digits than its factorization.

232451265452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17857663 (or 17857659 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 232451265452520 in words is "two hundred thirty-two trillion, four hundred fifty-one billion, two hundred sixty-five million, four hundred fifty-two thousand, five hundred twenty".