23443240642 has 16 divisors (see below), whose sum is σ = 35507469312. Its totient is φ = 11607760080.

The previous prime is 23443240631. The next prime is 23443240657. The reversal of 23443240642 is 24604234432.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23443240598 and 23443240607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52113 + ... + 222715.

It is an arithmetic number, because the mean of its divisors is an integer number (2219216832).

Almost surely, 2^23443240642 is an apocalyptic number.

23443240642 is a deficient number, since it is larger than the sum of its proper divisors (12064228670).

23443240642 is a wasteful number, since it uses less digits than its factorization.

23443240642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171273.

The product of its (nonzero) digits is 110592, while the sum is 34.

The spelling of 23443240642 in words is "twenty-three billion, four hundred forty-three million, two hundred forty thousand, six hundred forty-two".