1087404268217 has 4 divisors (see below), whose sum is σ = 1103634182736. Its totient is φ = 1071174353700.

The previous prime is 1087404268211. The next prime is 1087404268259. The reversal of 1087404268217 is 7128624047801.

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-1087404268217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087404268211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8114957159 + ... + 8114957292.

It is an arithmetic number, because the mean of its divisors is an integer number (275908545684).

Almost surely, 2^{1087404268217} is an apocalyptic number.

It is an amenable number.

1087404268217 is a deficient number, since it is larger than the sum of its proper divisors (16229914519).

1087404268217 is an equidigital number, since it uses as much as digits as its factorization.

1087404268217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16229914518.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 1087404268217 in words is "one trillion, eighty-seven billion, four hundred four million, two hundred sixty-eight thousand, two hundred seventeen".