23823553457520 has 120 divisors (see below), whose sum is σ = 82970672047536. Its totient is φ = 6352947583488.

The previous prime is 23823553457507. The next prime is 23823553457537. The reversal of 23823553457520 is 2575435532832.

23823553457520 is a `hidden beast` number, since 2 + 3 + 8 + 2 + 3 + 5 + 534 + 57 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 612726277 + ... + 612765156.

Almost surely, 2^{23823553457520} is an apocalyptic number.

23823553457520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23823553457520 is an abundant number, since it is smaller than the sum of its proper divisors (59147118590016).

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

23823553457520 is a wasteful number, since it uses less digits than its factorization.

23823553457520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225491461 (or 1225491443 counting only the distinct ones).

The product of its (nonzero) digits is 30240000, while the sum is 54.

The spelling of 23823553457520 in words is "twenty-three trillion, eight hundred twenty-three billion, five hundred fifty-three million, four hundred fifty-seven thousand, five hundred twenty".