77265252243 has 24 divisors (see below), whose sum is σ = 115795749888. Its totient is φ = 51484865544.

The previous prime is 77265252217. The next prime is 77265252287. The reversal of 77265252243 is 34225256277.

77265252243 is a `hidden beast` number, since 7 + 72 + 6 + 52 + 522 + 4 + 3 = 666.

It is not a de Polignac number, because 77265252243 - 2³³ = 68675317651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77265252143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424246 + ... + 578372.

It is an arithmetic number, because the mean of its divisors is an integer number (4824822912).

Almost surely, 2^77265252243 is an apocalyptic number.

77265252243 is a deficient number, since it is larger than the sum of its proper divisors (38530497645).

77265252243 is a wasteful number, since it uses less digits than its factorization.

77265252243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156205 (or 156193 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 45.

The spelling of 77265252243 in words is "seventy-seven billion, two hundred sixty-five million, two hundred fifty-two thousand, two hundred forty-three".