111009976557479 has 2 divisors, whose sum is σ = 111009976557480. Its totient is φ = 111009976557478.

The previous prime is 111009976557461. The next prime is 111009976557497. The reversal of 111009976557479 is 974755679900111.

Together with next prime (111009976557497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (111009976557461) and next prime (111009976557497).

It is a cyclic number.

It is not a de Polignac number, because 111009976557479 - 2²⁸ = 111009708122023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111009976557979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55504988278739 + 55504988278740.

It is an arithmetic number, because the mean of its divisors is an integer number (55504988278740).

Almost surely, 2^{111009976557479} is an apocalyptic number.

111009976557479 is a deficient number, since it is larger than the sum of its proper divisors (1).

111009976557479 is an equidigital number, since it uses as much as digits as its factorization.

111009976557479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150028200, while the sum is 71.

The spelling of 111009976557479 in words is "one hundred eleven trillion, nine billion, nine hundred seventy-six million, five hundred fifty-seven thousand, four hundred seventy-nine".