77730051423385 has 16 divisors (see below), whose sum is σ = 93476132942976. Its totient is φ = 62050683650688.

The previous prime is 77730051423379. The next prime is 77730051423389. The reversal of 77730051423385 is 58332415003777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77730051423385 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77730051423389) 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 15 ways as a sum of consecutive naturals, for example, 25300629 + ... + 28206061.

It is an arithmetic number, because the mean of its divisors is an integer number (5842258308936).

Almost surely, 2^{77730051423385} is an apocalyptic number.

It is an amenable number.

77730051423385 is a deficient number, since it is larger than the sum of its proper divisors (15746081519591).

77730051423385 is a wasteful number, since it uses less digits than its factorization.

77730051423385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916912.

The product of its (nonzero) digits is 14817600, while the sum is 55.

The spelling of 77730051423385 in words is "seventy-seven trillion, seven hundred thirty billion, fifty-one million, four hundred twenty-three thousand, three hundred eighty-five".