72054818441 has 2 divisors, whose sum is σ = 72054818442. Its totient is φ = 72054818440.

The previous prime is 72054818401. The next prime is 72054818447. The reversal of 72054818441 is 14481845027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48006562816 + 24048255625 = 219104^2 + 155075^2 .

It is a cyclic number.

It is not a de Polignac number, because 72054818441 - 2⁶ = 72054818377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72054818392 and 72054818401.

It is not a weakly prime, because it can be changed into another prime (72054818447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36027409220 + 36027409221.

It is an arithmetic number, because the mean of its divisors is an integer number (36027409221).

Almost surely, 2^72054818441 is an apocalyptic number.

It is an amenable number.

72054818441 is a deficient number, since it is larger than the sum of its proper divisors (1).

72054818441 is an equidigital number, since it uses as much as digits as its factorization.

72054818441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 286720, while the sum is 44.

The spelling of 72054818441 in words is "seventy-two billion, fifty-four million, eight hundred eighteen thousand, four hundred forty-one".