72488288441 has 2 divisors, whose sum is σ = 72488288442. Its totient is φ = 72488288440.

The previous prime is 72488288419. The next prime is 72488288449. The reversal of 72488288441 is 14488288427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53312962816 + 19175325625 = 230896^2 + 138475^2 .

It is an emirp because it is prime and its reverse (14488288427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72488288441 - 2⁶ = 72488288377 is a prime.

It is a super-2 number, since 2×72488288441² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72488288449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36244144220 + 36244144221.

It is an arithmetic number, because the mean of its divisors is an integer number (36244144221).

Almost surely, 2^72488288441 is an apocalyptic number.

It is an amenable number.

72488288441 is a deficient number, since it is larger than the sum of its proper divisors (1).

72488288441 is an equidigital number, since it uses as much as digits as its factorization.

72488288441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7340032, while the sum is 56.

The spelling of 72488288441 in words is "seventy-two billion, four hundred eighty-eight million, two hundred eighty-eight thousand, four hundred forty-one".