844425077649 has 32 divisors (see below), whose sum is σ = 1144870277760. Its totient is φ = 553555289088.

The previous prime is 844425077627. The next prime is 844425077659. The reversal of 844425077649 is 946770524448.

It is not a de Polignac number, because 844425077649 - 2¹⁶ = 844425012113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 844425077592 and 844425077601.

It is not an unprimeable number, because it can be changed into a prime (844425077659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31836217 + ... + 31862729.

It is an arithmetic number, because the mean of its divisors is an integer number (35777196180).

Almost surely, 2^844425077649 is an apocalyptic number.

It is an amenable number.

844425077649 is a deficient number, since it is larger than the sum of its proper divisors (300445200111).

844425077649 is a wasteful number, since it uses less digits than its factorization.

844425077649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27361.

The product of its (nonzero) digits is 54190080, while the sum is 60.

The spelling of 844425077649 in words is "eight hundred forty-four billion, four hundred twenty-five million, seventy-seven thousand, six hundred forty-nine".