72208805911783 has 2 divisors, whose sum is σ = 72208805911784. Its totient is φ = 72208805911782.

The previous prime is 72208805911771. The next prime is 72208805911793. The reversal of 72208805911783 is 38711950880227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72208805911783 - 2⁹ = 72208805911271 is a prime.

It is a super-2 number, since 2×72208805911783² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72208805911793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36104402955891 + 36104402955892.

It is an arithmetic number, because the mean of its divisors is an integer number (36104402955892).

Almost surely, 2^{72208805911783} is an apocalyptic number.

72208805911783 is a deficient number, since it is larger than the sum of its proper divisors (1).

72208805911783 is an equidigital number, since it uses as much as digits as its factorization.

72208805911783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 72208805911783 in words is "seventy-two trillion, two hundred eight billion, eight hundred five million, nine hundred eleven thousand, seven hundred eighty-three".