4001223668732 has 12 divisors (see below), whose sum is σ = 7191388485960. Its totient is φ = 1946541244176.

The previous prime is 4001223668731. The next prime is 4001223668747. The reversal of 4001223668732 is 2378663221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001223668731) 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, 13517647382 + ... + 13517647677.

It is an arithmetic number, because the mean of its divisors is an integer number (599282373830).

Almost surely, 2^{4001223668732} is an apocalyptic number.

It is an amenable number.

4001223668732 is a deficient number, since it is larger than the sum of its proper divisors (3190164817228).

4001223668732 is a wasteful number, since it uses less digits than its factorization.

4001223668732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27035295100 (or 27035295098 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

Adding to 4001223668732 its reverse (2378663221004), we get a palindrome (6379886889736).

The spelling of 4001223668732 in words is "four trillion, one billion, two hundred twenty-three million, six hundred sixty-eight thousand, seven hundred thirty-two".