77265252244 has 24 divisors (see below), whose sum is σ = 137790471168. Its totient is φ = 37896811680.

The previous prime is 77265252217. The next prime is 77265252287. The reversal of 77265252244 is 44225256277.

It is a junction number, because it is equal to n+sod(n) for n = 77265252194 and 77265252203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251829 + ... + 1312099.

It is an arithmetic number, because the mean of its divisors is an integer number (5741269632).

Almost surely, 2^77265252244 is an apocalyptic number.

It is an amenable number.

77265252244 is a deficient number, since it is larger than the sum of its proper divisors (60525218924).

77265252244 is a wasteful number, since it uses less digits than its factorization.

77265252244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66375 (or 66373 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 46.

The spelling of 77265252244 in words is "seventy-seven billion, two hundred sixty-five million, two hundred fifty-two thousand, two hundred forty-four".