72424473603 has 4 divisors (see below), whose sum is σ = 96565964808. Its totient is φ = 48282982400.

The previous prime is 72424473599. The next prime is 72424473637. The reversal of 72424473603 is 30637442427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30637442427 = 3 ⋅10212480809.

It is a cyclic number.

It is not a de Polignac number, because 72424473603 - 2² = 72424473599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72424473643) 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, 12070745598 + ... + 12070745603.

It is an arithmetic number, because the mean of its divisors is an integer number (24141491202).

Almost surely, 2^72424473603 is an apocalyptic number.

72424473603 is a deficient number, since it is larger than the sum of its proper divisors (24141491205).

72424473603 is a wasteful number, since it uses less digits than its factorization.

72424473603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24141491204.

The product of its (nonzero) digits is 677376, while the sum is 42.

The spelling of 72424473603 in words is "seventy-two billion, four hundred twenty-four million, four hundred seventy-three thousand, six hundred three".