72124951854859 has 2 divisors, whose sum is σ = 72124951854860. Its totient is φ = 72124951854858.

The previous prime is 72124951854853. The next prime is 72124951854881. The reversal of 72124951854859 is 95845815942127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72124951854859 is a prime.

It is not a weakly prime, because it can be changed into another prime (72124951854853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36062475927429 + 36062475927430.

It is an arithmetic number, because the mean of its divisors is an integer number (36062475927430).

Almost surely, 2^{72124951854859} is an apocalyptic number.

72124951854859 is a deficient number, since it is larger than the sum of its proper divisors (1).

72124951854859 is an equidigital number, since it uses as much as digits as its factorization.

72124951854859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304000, while the sum is 70.

The spelling of 72124951854859 in words is "seventy-two trillion, one hundred twenty-four billion, nine hundred fifty-one million, eight hundred fifty-four thousand, eight hundred fifty-nine".