272858416781 has 4 divisors (see below), whose sum is σ = 273323252832. Its totient is φ = 272393580732.

The previous prime is 272858416769. The next prime is 272858416799. The reversal of 272858416781 is 187614858272.

272858416781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272858416781 is a prime.

It is a super-2 number, since 2×272858416781² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272858416781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272858416081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232417145 + ... + 232418318.

It is an arithmetic number, because the mean of its divisors is an integer number (68330813208).

Almost surely, 2^272858416781 is an apocalyptic number.

It is an amenable number.

272858416781 is a deficient number, since it is larger than the sum of its proper divisors (464836051).

272858416781 is an equidigital number, since it uses as much as digits as its factorization.

272858416781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464836050.

The product of its digits is 12042240, while the sum is 59.

The spelling of 272858416781 in words is "two hundred seventy-two billion, eight hundred fifty-eight million, four hundred sixteen thousand, seven hundred eighty-one".