72354067007 has 4 divisors (see below), whose sum is σ = 72356828040. Its totient is φ = 72351305976.

The previous prime is 72354066997. The next prime is 72354067031. The reversal of 72354067007 is 70076045327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70076045327 = 37 ⋅1893947171.

It is a cyclic number.

It is not a de Polignac number, because 72354067007 - 2¹⁸ = 72353804863 is a prime.

It is a super-2 number, since 2×72354067007² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72354066007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340828 + ... + 1393745.

It is an arithmetic number, because the mean of its divisors is an integer number (18089207010).

Almost surely, 2^72354067007 is an apocalyptic number.

72354067007 is a deficient number, since it is larger than the sum of its proper divisors (2761033).

72354067007 is a wasteful number, since it uses less digits than its factorization.

72354067007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761032.

The product of its (nonzero) digits is 246960, while the sum is 41.

The spelling of 72354067007 in words is "seventy-two billion, three hundred fifty-four million, sixty-seven thousand, seven".