111847455947 has 2 divisors, whose sum is σ = 111847455948. Its totient is φ = 111847455946.

The previous prime is 111847455829. The next prime is 111847455977. The reversal of 111847455947 is 749554748111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111847455947 - 2¹⁰ = 111847454923 is a prime.

It is a super-2 number, since 2×111847455947² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111847455892 and 111847455901.

It is not a weakly prime, because it can be changed into another prime (111847455977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55923727973 + 55923727974.

It is an arithmetic number, because the mean of its divisors is an integer number (55923727974).

Almost surely, 2^111847455947 is an apocalyptic number.

111847455947 is a deficient number, since it is larger than the sum of its proper divisors (1).

111847455947 is an equidigital number, since it uses as much as digits as its factorization.

111847455947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5644800, while the sum is 56.

The spelling of 111847455947 in words is "one hundred eleven billion, eight hundred forty-seven million, four hundred fifty-five thousand, nine hundred forty-seven".