77004025544 has 32 divisors (see below), whose sum is σ = 149578233600. Its totient is φ = 37125466560.

The previous prime is 77004025541. The next prime is 77004025577. The reversal of 77004025544 is 44552040077.

It is a junction number, because it is equal to n+sod(n) for n = 77004025498 and 77004025507.

It is not an unprimeable number, because it can be changed into a prime (77004025541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491774 + ... + 629165.

It is an arithmetic number, because the mean of its divisors is an integer number (4674319800).

Almost surely, 2^77004025544 is an apocalyptic number.

It is an amenable number.

77004025544 is a deficient number, since it is larger than the sum of its proper divisors (72574208056).

77004025544 is a wasteful number, since it uses less digits than its factorization.

77004025544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121253 (or 1121249 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The spelling of 77004025544 in words is "seventy-seven billion, four million, twenty-five thousand, five hundred forty-four".