23768387442 has 28 divisors (see below), whose sum is σ = 53454421950. Its totient is φ = 7922795328.

The previous prime is 23768387407. The next prime is 23768387449. The reversal of 23768387442 is 24478386732.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23494451841 + 273935601 = 153279^2 + 16551^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (23768387449) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 8149567 + ... + 8152482.

Almost surely, 2^23768387442 is an apocalyptic number.

23768387442 is an abundant number, since it is smaller than the sum of its proper divisors (29686034508).

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

23768387442 is an equidigital number, since it uses as much as digits as its factorization.

23768387442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302069 (or 16302054 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 54.

The spelling of 23768387442 in words is "twenty-three billion, seven hundred sixty-eight million, three hundred eighty-seven thousand, four hundred forty-two".