77728670733068 has 12 divisors (see below), whose sum is σ = 144026654593752. Its totient is φ = 36578197992000.

The previous prime is 77728670733067. The next prime is 77728670733079. The reversal of 77728670733068 is 86033707682777.

77728670733068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×77728670733068³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77728670732992 and 77728670733010.

It is not an unprimeable number, because it can be changed into a prime (77728670733067) 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, 571534343558 + ... + 571534343693.

It is an arithmetic number, because the mean of its divisors is an integer number (12002221216146).

Almost surely, 2^{77728670733068} is an apocalyptic number.

It is an amenable number.

77728670733068 is a deficient number, since it is larger than the sum of its proper divisors (66297983860684).

77728670733068 is a wasteful number, since it uses less digits than its factorization.

77728670733068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143068687272 (or 1143068687270 counting only the distinct ones).

The product of its (nonzero) digits is 697019904, while the sum is 71.

The spelling of 77728670733068 in words is "seventy-seven trillion, seven hundred twenty-eight billion, six hundred seventy million, seven hundred thirty-three thousand, sixty-eight".