77750006248 has 16 divisors (see below), whose sum is σ = 153453960000. Its totient is φ = 36828950256.

The previous prime is 77750006221. The next prime is 77750006249. The reversal of 77750006248 is 84260005777.

It is a junction number, because it is equal to n+sod(n) for n = 77750006198 and 77750006207.

It is not an unprimeable number, because it can be changed into a prime (77750006249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255756448 + ... + 255756751.

It is an arithmetic number, because the mean of its divisors is an integer number (9590872500).

Almost surely, 2^77750006248 is an apocalyptic number.

It is an amenable number.

77750006248 is a deficient number, since it is larger than the sum of its proper divisors (75703953752).

77750006248 is a wasteful number, since it uses less digits than its factorization.

77750006248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511513224 (or 511513220 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 77750006248 in words is "seventy-seven billion, seven hundred fifty million, six thousand, two hundred forty-eight".