72124951854911 has 2 divisors, whose sum is σ = 72124951854912. Its totient is φ = 72124951854910.

The previous prime is 72124951854881. The next prime is 72124951854961. The reversal of 72124951854911 is 11945815942127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72124951854911 - 2¹⁸ = 72124951592767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72124951854961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36062475927455 + 36062475927456.

It is an arithmetic number, because the mean of its divisors is an integer number (36062475927456).

Almost surely, 2^{72124951854911} is an apocalyptic number.

72124951854911 is a deficient number, since it is larger than the sum of its proper divisors (1).

72124951854911 is an equidigital number, since it uses as much as digits as its factorization.

72124951854911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 59.

The spelling of 72124951854911 in words is "seventy-two trillion, one hundred twenty-four billion, nine hundred fifty-one million, eight hundred fifty-four thousand, nine hundred eleven".