77004844849 has 16 divisors (see below), whose sum is σ = 81535829760. Its totient is φ = 72522864000.

The previous prime is 77004844823. The next prime is 77004844879. The reversal of 77004844849 is 94844840077.

It is a cyclic number.

It is not a de Polignac number, because 77004844849 - 2⁹ = 77004844337 is a prime.

It is a super-2 number, since 2×77004844849² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77004844849.

It is not an unprimeable number, because it can be changed into a prime (77004844879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2357469 + ... + 2389909.

It is an arithmetic number, because the mean of its divisors is an integer number (5095989360).

Almost surely, 2^77004844849 is an apocalyptic number.

It is an amenable number.

77004844849 is a deficient number, since it is larger than the sum of its proper divisors (4530984911).

77004844849 is a wasteful number, since it uses less digits than its factorization.

77004844849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33192.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 77004844849 in words is "seventy-seven billion, four million, eight hundred forty-four thousand, eight hundred forty-nine".