23400502433520 has 80 divisors (see below), whose sum is σ = 73910266216992. Its totient is φ = 6122395601920.

The previous prime is 23400502433519. The next prime is 23400502433537. The reversal of 23400502433520 is 2533420500432.

It is a tau number, because it is divible by the number of its divisors (80).

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, 919818351 + ... + 919843790.

Almost surely, 2^{23400502433520} is an apocalyptic number.

23400502433520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23400502433520 is an abundant number, since it is smaller than the sum of its proper divisors (50509763783472).

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

23400502433520 is a wasteful number, since it uses less digits than its factorization.

23400502433520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839662210 (or 1839662204 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 23400502433520 its reverse (2533420500432), we get a palindrome (25933922933952).

The spelling of 23400502433520 in words is "twenty-three trillion, four hundred billion, five hundred two million, four hundred thirty-three thousand, five hundred twenty".