2074845420685 has 4 divisors (see below), whose sum is σ = 2489814504828. Its totient is φ = 1659876336544.

The previous prime is 2074845420679. The next prime is 2074845420689. The reversal of 2074845420685 is 5860245484702.

It is a happy number.

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 693294365449 + 1381551055236 = 832643^2 + 1175394^2 .

It is a cyclic number.

It is not a de Polignac number, because 2074845420685 - 2²⁷ = 2074711202957 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 (2074845420689) 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, 207484542064 + ... + 207484542073.

It is an arithmetic number, because the mean of its divisors is an integer number (622453626207).

Almost surely, 2^{2074845420685} is an apocalyptic number.

It is an amenable number.

2074845420685 is a deficient number, since it is larger than the sum of its proper divisors (414969084143).

2074845420685 is an equidigital number, since it uses as much as digits as its factorization.

2074845420685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414969084142.

The product of its (nonzero) digits is 17203200, while the sum is 55.

The spelling of 2074845420685 in words is "two trillion, seventy-four billion, eight hundred forty-five million, four hundred twenty thousand, six hundred eighty-five".