109865802427 has 4 divisors (see below), whose sum is σ = 109905197760. Its totient is φ = 109826407096.

The previous prime is 109865802421. The next prime is 109865802467. The reversal of 109865802427 is 724208568901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109865802427 - 2¹⁵ = 109865769659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109865802421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19693483 + ... + 19699060.

It is an arithmetic number, because the mean of its divisors is an integer number (27476299440).

Almost surely, 2^109865802427 is an apocalyptic number.

109865802427 is a deficient number, since it is larger than the sum of its proper divisors (39395333).

109865802427 is an equidigital number, since it uses as much as digits as its factorization.

109865802427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39395332.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 109865802427 in words is "one hundred nine billion, eight hundred sixty-five million, eight hundred two thousand, four hundred twenty-seven".