77728670733034 has 8 divisors (see below), whose sum is σ = 123451418223108. Its totient is φ = 36578197992000.

The previous prime is 77728670733023. The next prime is 77728670733067. The reversal of 77728670733034 is 43033707682777.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60929779897009 + 16798890836025 = 7805753^2 + 4098645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143068687217 + ... + 1143068687284.

Almost surely, 2^{77728670733034} is an apocalyptic number.

77728670733034 is a deficient number, since it is larger than the sum of its proper divisors (45722747490074).

77728670733034 is a wasteful number, since it uses less digits than its factorization.

77728670733034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286137374520.

The product of its (nonzero) digits is 174254976, while the sum is 64.

The spelling of 77728670733034 in words is "seventy-seven trillion, seven hundred twenty-eight billion, six hundred seventy million, seven hundred thirty-three thousand, thirty-four".