72572223937 has 8 divisors (see below), whose sum is σ = 74285164800. Its totient is φ = 70866318624.

The previous prime is 72572223917. The next prime is 72572223947. The reversal of 72572223937 is 73932227527.

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

It is a cyclic number.

It is not a de Polignac number, because 72572223937 - 2⁷ = 72572223809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72572223917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738012 + ... + 1779277.

It is an arithmetic number, because the mean of its divisors is an integer number (9285645600).

Almost surely, 2^72572223937 is an apocalyptic number.

It is an amenable number.

72572223937 is a deficient number, since it is larger than the sum of its proper divisors (1712940863).

72572223937 is a wasteful number, since it uses less digits than its factorization.

72572223937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517775.

The product of its digits is 2222640, while the sum is 49.

The spelling of 72572223937 in words is "seventy-two billion, five hundred seventy-two million, two hundred twenty-three thousand, nine hundred thirty-seven".