77352147444 has 48 divisors (see below), whose sum is σ = 212042255040. Its totient is φ = 21636963840.

The previous prime is 77352147419. The next prime is 77352147449. The reversal of 77352147444 is 44474125377.

It is a junction number, because it is equal to n+sod(n) for n = 77352147393 and 77352147402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77352147449) 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, 22536789 + ... + 22540220.

It is an arithmetic number, because the mean of its divisors is an integer number (4417546980).

Almost surely, 2^77352147444 is an apocalyptic number.

It is an amenable number.

77352147444 is an abundant number, since it is smaller than the sum of its proper divisors (134690107596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77352147444 is a wasteful number, since it uses less digits than its factorization.

77352147444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45077040 (or 45077038 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 48.

The spelling of 77352147444 in words is "seventy-seven billion, three hundred fifty-two million, one hundred forty-seven thousand, four hundred forty-four".