2785453386623 has 4 divisors (see below), whose sum is σ = 2785527217080. Its totient is φ = 2785379556168.

The previous prime is 2785453386539. The next prime is 2785453386671. The reversal of 2785453386623 is 3266833545872.

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 2785453386623 - 2¹⁰ = 2785453385599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785453386673) 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, 36858608 + ... + 36934101.

It is an arithmetic number, because the mean of its divisors is an integer number (696381804270).

Almost surely, 2^{2785453386623} is an apocalyptic number.

2785453386623 is a deficient number, since it is larger than the sum of its proper divisors (73830457).

2785453386623 is an equidigital number, since it uses as much as digits as its factorization.

2785453386623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73830456.

The product of its digits is 174182400, while the sum is 62.

The spelling of 2785453386623 in words is "two trillion, seven hundred eighty-five billion, four hundred fifty-three million, three hundred eighty-six thousand, six hundred twenty-three".