23471471520 has 192 divisors, whose sum is σ = 93886007040. Its totient is φ = 5364900864.

The previous prime is 23471471417. The next prime is 23471471537. The reversal of 23471471520 is 2517417432.

23471471520 is a `hidden beast` number, since 23 + 4 + 71 + 47 + 1 + 520 = 666.

It is a super-2 number, since 2×23471471520² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 357847 + ... + 418326.

It is an arithmetic number, because the mean of its divisors is an integer number (488989620).

Almost surely, 2^23471471520 is an apocalyptic number.

23471471520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23471471520 is an abundant number, since it is smaller than the sum of its proper divisors (70414535520).

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

23471471520 is a wasteful number, since it uses less digits than its factorization.

23471471520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776204 (or 776190 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 23471471520 its reverse (2517417432), we get a palindrome (25988888952).

The spelling of 23471471520 in words is "twenty-three billion, four hundred seventy-one million, four hundred seventy-one thousand, five hundred twenty".