1087919267513 has 4 divisors (see below), whose sum is σ = 1171605365028. Its totient is φ = 1004233170000.

The previous prime is 1087919267497. The next prime is 1087919267531. The reversal of 1087919267513 is 3157629197801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 527378059264 + 560541208249 = 726208^2 + 748693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087919267513 - 2⁴ = 1087919267497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087919267563) 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, 41843048738 + ... + 41843048763.

It is an arithmetic number, because the mean of its divisors is an integer number (292901341257).

Almost surely, 2^{1087919267513} is an apocalyptic number.

1087919267513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1087919267513 is a deficient number, since it is larger than the sum of its proper divisors (83686097515).

1087919267513 is an equidigital number, since it uses as much as digits as its factorization.

1087919267513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83686097514.

The product of its (nonzero) digits is 5715360, while the sum is 59.

The spelling of 1087919267513 in words is "one trillion, eighty-seven billion, nine hundred nineteen million, two hundred sixty-seven thousand, five hundred thirteen".