23742777243 has 4 divisors (see below), whose sum is σ = 31657036328. Its totient is φ = 15828518160.

The previous prime is 23742777241. The next prime is 23742777259. The reversal of 23742777243 is 34277724732.

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

It is not a de Polignac number, because 23742777243 - 2¹ = 23742777241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23742777192 and 23742777201.

It is not an unprimeable number, because it can be changed into a prime (23742777241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3957129538 + ... + 3957129543.

It is an arithmetic number, because the mean of its divisors is an integer number (7914259082).

Almost surely, 2^23742777243 is an apocalyptic number.

23742777243 is a deficient number, since it is larger than the sum of its proper divisors (7914259085).

23742777243 is an equidigital number, since it uses as much as digits as its factorization.

23742777243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914259084.

The product of its digits is 2765952, while the sum is 48.

The spelling of 23742777243 in words is "twenty-three billion, seven hundred forty-two million, seven hundred seventy-seven thousand, two hundred forty-three".