23738728751856 has 60 divisors (see below), whose sum is σ = 66437294043120. Its totient is φ = 7912692334080.

The previous prime is 23738728751851. The next prime is 23738728751863. The reversal of 23738728751856 is 65815782783732.

23738728751856 is a `hidden beast` number, since 2 + 3 + 7 + 3 + 87 + 28 + 7 + 518 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23738728751851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3043165 + ... + 7532483.

It is an arithmetic number, because the mean of its divisors is an integer number (1107288234052).

Almost surely, 2^{23738728751856} is an apocalyptic number.

It is an amenable number.

23738728751856 is an abundant number, since it is smaller than the sum of its proper divisors (42698565291264).

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

23738728751856 is a wasteful number, since it uses less digits than its factorization.

23738728751856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526054 (or 4526045 counting only the distinct ones).

The product of its digits is 948326400, while the sum is 72.

The spelling of 23738728751856 in words is "twenty-three trillion, seven hundred thirty-eight billion, seven hundred twenty-eight million, seven hundred fifty-one thousand, eight hundred fifty-six".