72274247827 has 2 divisors, whose sum is σ = 72274247828. Its totient is φ = 72274247826.

The previous prime is 72274247807. The next prime is 72274247873. The reversal of 72274247827 is 72874247227.

It is a weak prime.

It is an emirp because it is prime and its reverse (72874247227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72274247827 - 2¹⁹ = 72273723539 is a prime.

It is a super-2 number, since 2×72274247827² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72274247807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36137123913 + 36137123914.

It is an arithmetic number, because the mean of its divisors is an integer number (36137123914).

Almost surely, 2^72274247827 is an apocalyptic number.

72274247827 is a deficient number, since it is larger than the sum of its proper divisors (1).

72274247827 is an equidigital number, since it uses as much as digits as its factorization.

72274247827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4917248, while the sum is 52.

The spelling of 72274247827 in words is "seventy-two billion, two hundred seventy-four million, two hundred forty-seven thousand, eight hundred twenty-seven".