23756672646 has 144 divisors (see below), whose sum is σ = 60904509120. Its totient is φ = 6672123360.

The previous prime is 23756672609. The next prime is 23756672657. The reversal of 23756672646 is 64627665732.

23756672646 is a `hidden beast` number, since 2 + 3 + 7 + 566 + 72 + 6 + 4 + 6 = 666.

It is a super-3 number, since 3×23756672646³ (a number of 32 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 23756672592 and 23756672601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13117081 + ... + 13118891.

It is an arithmetic number, because the mean of its divisors is an integer number (422947980).

Almost surely, 2^23756672646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23756672646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30452254560).

23756672646 is an abundant number, since it is smaller than the sum of its proper divisors (37147836474).

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

23756672646 is a wasteful number, since it uses less digits than its factorization.

23756672646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2069 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 54.

The spelling of 23756672646 in words is "twenty-three billion, seven hundred fifty-six million, six hundred seventy-two thousand, six hundred forty-six".