77268908252 has 12 divisors (see below), whose sum is σ = 135271007256. Its totient is φ = 38620049040.

The previous prime is 77268908239. The next prime is 77268908257. The reversal of 77268908252 is 25280986277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77268908257) 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 3 ways as a sum of consecutive naturals, for example, 3589199 + ... + 3610662.

It is an arithmetic number, because the mean of its divisors is an integer number (11272583938).

Almost surely, 2^77268908252 is an apocalyptic number.

It is an amenable number.

77268908252 is a deficient number, since it is larger than the sum of its proper divisors (58002099004).

77268908252 is a wasteful number, since it uses less digits than its factorization.

77268908252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7202548 (or 7202546 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 77268908252 in words is "seventy-seven billion, two hundred sixty-eight million, nine hundred eight thousand, two hundred fifty-two".