874261045657849 has 4 divisors (see below), whose sum is σ = 874334260730980. Its totient is φ = 874187830584720.

The previous prime is 874261045657829. The next prime is 874261045657861. The reversal of 874261045657849 is 948756540162478.

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 306631373657449 + 567629672000400 = 17510893^2 + 23824980^2 .

It is a cyclic number.

It is not a de Polignac number, because 874261045657849 - 2¹⁹ = 874261045133561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (874261045657829) 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, 36607518654 + ... + 36607542535.

It is an arithmetic number, because the mean of its divisors is an integer number (218583565182745).

Almost surely, 2^{874261045657849} is an apocalyptic number.

It is an amenable number.

874261045657849 is a deficient number, since it is larger than the sum of its proper divisors (73215073131).

874261045657849 is a wasteful number, since it uses less digits than its factorization.

874261045657849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73215073130.

The product of its (nonzero) digits is 3251404800, while the sum is 76.

The spelling of 874261045657849 in words is "eight hundred seventy-four trillion, two hundred sixty-one billion, forty-five million, six hundred fifty-seven thousand, eight hundred forty-nine".