72607223069 has 2 divisors, whose sum is σ = 72607223070. Its totient is φ = 72607223068.

The previous prime is 72607223047. The next prime is 72607223071. The reversal of 72607223069 is 96032270627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54738217444 + 17869005625 = 233962^2 + 133675^2 .

It is a cyclic number.

It is not a de Polignac number, because 72607223069 - 2⁸ = 72607222813 is a prime.

It is a super-2 number, since 2×72607223069² (a number of 23 digits) contains 22 as substring.

Together with 72607223071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72607223089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36303611534 + 36303611535.

It is an arithmetic number, because the mean of its divisors is an integer number (36303611535).

Almost surely, 2^72607223069 is an apocalyptic number.

It is an amenable number.

72607223069 is a deficient number, since it is larger than the sum of its proper divisors (1).

72607223069 is an equidigital number, since it uses as much as digits as its factorization.

72607223069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 72607223069 in words is "seventy-two billion, six hundred seven million, two hundred twenty-three thousand, sixty-nine".