72395739573 has 32 divisors (see below), whose sum is σ = 101749063680. Its totient is φ = 45696657600.

The previous prime is 72395739569. The next prime is 72395739649. The reversal of 72395739573 is 37593759327.

It is not a de Polignac number, because 72395739573 - 2² = 72395739569 is a prime.

It is a super-2 number, since 2×72395739573² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72395739503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8652490 + ... + 8660852.

It is an arithmetic number, because the mean of its divisors is an integer number (3179658240).

Almost surely, 2^72395739573 is an apocalyptic number.

It is an amenable number.

72395739573 is a deficient number, since it is larger than the sum of its proper divisors (29353324107).

72395739573 is a wasteful number, since it uses less digits than its factorization.

72395739573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9649.

The product of its digits is 37507050, while the sum is 60.

The spelling of 72395739573 in words is "seventy-two billion, three hundred ninety-five million, seven hundred thirty-nine thousand, five hundred seventy-three".