77728670733022 has 8 divisors (see below), whose sum is σ = 116593058848896. Its totient is φ = 38864317783392.

The previous prime is 77728670733019. The next prime is 77728670733023. The reversal of 77728670733022 is 22033707682777.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77728670733023) 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, 2310078 + ... + 12680449.

It is an arithmetic number, because the mean of its divisors is an integer number (14574132356112).

Almost surely, 2^{77728670733022} is an apocalyptic number.

77728670733022 is a deficient number, since it is larger than the sum of its proper divisors (38864388115874).

77728670733022 is a wasteful number, since it uses less digits than its factorization.

77728670733022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17583122.

The product of its (nonzero) digits is 58084992, while the sum is 61.

The spelling of 77728670733022 in words is "seventy-seven trillion, seven hundred twenty-eight billion, six hundred seventy million, seven hundred thirty-three thousand, twenty-two".