1775645696868 has 48 divisors (see below), whose sum is σ = 4152577982784. Its totient is φ = 590538936960.

The previous prime is 1775645696849. The next prime is 1775645696959. The reversal of 1775645696868 is 8686965465771.

It is a junction number, because it is equal to n+sod(n) for n = 1775645696793 and 1775645696802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27052746 + ... + 27118302.

It is an arithmetic number, because the mean of its divisors is an integer number (86512041308).

Almost surely, 2^{1775645696868} is an apocalyptic number.

It is an amenable number.

1775645696868 is an abundant number, since it is smaller than the sum of its proper divisors (2376932285916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1775645696868 is a wasteful number, since it uses less digits than its factorization.

1775645696868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70652 (or 70650 counting only the distinct ones).

The product of its digits is 3657830400, while the sum is 78.

The spelling of 1775645696868 in words is "one trillion, seven hundred seventy-five billion, six hundred forty-five million, six hundred ninety-six thousand, eight hundred sixty-eight".