23978934450 has 36 divisors (see below), whose sum is σ = 64423405098. Its totient is φ = 6394382400.

The previous prime is 23978934383. The next prime is 23978934451. The reversal of 23978934450 is 5443987932.

23978934450 is a `hidden beast` number, since 2 + 39 + 78 + 93 + 4 + 450 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 22980437649 + 998496801 = 151593^2 + 31599^2 .

It is not an unprimeable number, because it can be changed into a prime (23978934451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26642811 + ... + 26643710.

Almost surely, 2^23978934450 is an apocalyptic number.

23978934450 is an abundant number, since it is smaller than the sum of its proper divisors (40444470648).

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

23978934450 is a wasteful number, since it uses less digits than its factorization.

23978934450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53286539 (or 53286531 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 23978934450 in words is "twenty-three billion, nine hundred seventy-eight million, nine hundred thirty-four thousand, four hundred fifty".