1769987013865 has 16 divisors (see below), whose sum is σ = 2427509905920. Its totient is φ = 1213655808960.

The previous prime is 1769987013859. The next prime is 1769987013871. The reversal of 1769987013865 is 5683107899671.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1769987013859) and next prime (1769987013871).

It is not a de Polignac number, because 1769987013865 - 2¹⁹ = 1769986489577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1769987013794 and 1769987013803.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 153025 + ... + 1887694.

It is an arithmetic number, because the mean of its divisors is an integer number (151719369120).

Almost surely, 2^{1769987013865} is an apocalyptic number.

It is an amenable number.

1769987013865 is a deficient number, since it is larger than the sum of its proper divisors (657522892055).

1769987013865 is a wasteful number, since it uses less digits than its factorization.

1769987013865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065512.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 1769987013865 in words is "one trillion, seven hundred sixty-nine billion, nine hundred eighty-seven million, thirteen thousand, eight hundred sixty-five".