23939654562 has 12 divisors (see below), whose sum is σ = 51869251590. Its totient is φ = 7979884848.

The previous prime is 23939654521. The next prime is 23939654569. The reversal of 23939654562 is 26545693932.

It is a happy number.

23939654562 is a `hidden beast` number, since 2 + 3 + 9 + 3 + 96 + 545 + 6 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23562557001 + 377097561 = 153501^2 + 19419^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23939654499 and 23939654508.

It is not an unprimeable number, because it can be changed into a prime (23939654569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 664990387 + ... + 664990422.

Almost surely, 2^23939654562 is an apocalyptic number.

23939654562 is an abundant number, since it is smaller than the sum of its proper divisors (27929597028).

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

23939654562 is a wasteful number, since it uses less digits than its factorization.

23939654562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329980817 (or 1329980814 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The spelling of 23939654562 in words is "twenty-three billion, nine hundred thirty-nine million, six hundred fifty-four thousand, five hundred sixty-two".