73572223345 has 16 divisors (see below), whose sum is σ = 88474119552. Its totient is φ = 58732905600.

The previous prime is 73572223303. The next prime is 73572223357. The reversal of 73572223345 is 54332227537.

It is a happy number.

It is not a de Polignac number, because 73572223345 - 2⁹ = 73572222833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8899684 + ... + 8907946.

It is an arithmetic number, because the mean of its divisors is an integer number (5529632472).

Almost surely, 2^73572223345 is an apocalyptic number.

It is an amenable number.

73572223345 is a deficient number, since it is larger than the sum of its proper divisors (14901896207).

73572223345 is a wasteful number, since it uses less digits than its factorization.

73572223345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11832.

The product of its digits is 1058400, while the sum is 43.

The spelling of 73572223345 in words is "seventy-three billion, five hundred seventy-two million, two hundred twenty-three thousand, three hundred forty-five".