72239623448 has 8 divisors (see below), whose sum is σ = 135449293980. Its totient is φ = 36119811720.

The previous prime is 72239623429. The next prime is 72239623457. The reversal of 72239623448 is 84432693227.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 72239623396 and 72239623405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4514976458 + ... + 4514976473.

Almost surely, 2^72239623448 is an apocalyptic number.

It is an amenable number.

72239623448 is a deficient number, since it is larger than the sum of its proper divisors (63209670532).

72239623448 is a wasteful number, since it uses less digits than its factorization.

72239623448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029952937 (or 9029952933 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 50.

The spelling of 72239623448 in words is "seventy-two billion, two hundred thirty-nine million, six hundred twenty-three thousand, four hundred forty-eight".