23223172457642 has 8 divisors (see below), whose sum is σ = 35776238651076. Its totient is φ = 11297759573952.

The previous prime is 23223172457623. The next prime is 23223172457657. The reversal of 23223172457642 is 24675427132232.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22488944547001 + 734227910641 = 4742251^2 + 856871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156913327343 + ... + 156913327490.

Almost surely, 2^{23223172457642} is an apocalyptic number.

23223172457642 is a deficient number, since it is larger than the sum of its proper divisors (12553066193434).

23223172457642 is a wasteful number, since it uses less digits than its factorization.

23223172457642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313826654872.

The product of its digits is 6773760, while the sum is 50.

Adding to 23223172457642 its reverse (24675427132232), we get a palindrome (47898599589874).

The spelling of 23223172457642 in words is "twenty-three trillion, two hundred twenty-three billion, one hundred seventy-two million, four hundred fifty-seven thousand, six hundred forty-two".