23742467847 has 54 divisors (see below), whose sum is σ = 40755989768. Its totient is φ = 13548255048.

The previous prime is 23742467843. The next prime is 23742467851. The reversal of 23742467847 is 74876424732.

It is an interprime number because it is at equal distance from previous prime (23742467843) and next prime (23742467851).

It is not a de Polignac number, because 23742467847 - 2² = 23742467843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23742467793 and 23742467802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23742467843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 33021154 + ... + 33021872.

Almost surely, 2^23742467847 is an apocalyptic number.

23742467847 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23742467847 is a deficient number, since it is larger than the sum of its proper divisors (17013521921).

23742467847 is an frugal number, since it uses more digits than its factorization.

23742467847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 729 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 54.

The spelling of 23742467847 in words is "twenty-three billion, seven hundred forty-two million, four hundred sixty-seven thousand, eight hundred forty-seven".