23736668378 has 4 divisors (see below), whose sum is σ = 35605002570. Its totient is φ = 11868334188.

The previous prime is 23736668377. The next prime is 23736668443. The reversal of 23736668378 is 87386663732.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23736640489 + 27889 = 154067^2 + 167^2 .

It is not an unprimeable number, because it can be changed into a prime (23736668377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5934167093 + ... + 5934167096.

Almost surely, 2^23736668378 is an apocalyptic number.

23736668378 is a deficient number, since it is larger than the sum of its proper divisors (11868334192).

23736668378 is a wasteful number, since it uses less digits than its factorization.

23736668378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11868334191.

The product of its digits is 36578304, while the sum is 59.

The spelling of 23736668378 in words is "twenty-three billion, seven hundred thirty-six million, six hundred sixty-eight thousand, three hundred seventy-eight".