23403331647 has 32 divisors (see below), whose sum is σ = 35538874560. Its totient is φ = 15212413440.

The previous prime is 23403331591. The next prime is 23403331663. The reversal of 23403331647 is 74613330432.

23403331647 is a `hidden beast` number, since 2 + 3 + 4 + 0 + 3 + 3 + 3 + 1 + 647 = 666.

It is not a de Polignac number, because 23403331647 - 2¹⁰ = 23403330623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403331667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2134363 + ... + 2145299.

It is an arithmetic number, because the mean of its divisors is an integer number (1110589830).

Almost surely, 2^23403331647 is an apocalyptic number.

23403331647 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23403331647 is a deficient number, since it is larger than the sum of its proper divisors (12135542913).

23403331647 is a wasteful number, since it uses less digits than its factorization.

23403331647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920 (or 12914 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The spelling of 23403331647 in words is "twenty-three billion, four hundred three million, three hundred thirty-one thousand, six hundred forty-seven".