77730051740255 has 16 divisors (see below), whose sum is σ = 93305152109664. Its totient is φ = 62164649594880.

The previous prime is 77730051740233. The next prime is 77730051740317. The reversal of 77730051740255 is 55204715003777.

It is a happy number.

It is not a de Polignac number, because 77730051740255 - 2¹⁰ = 77730051739231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77730051740197 and 77730051740206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471114404 + ... + 471279366.

It is an arithmetic number, because the mean of its divisors is an integer number (5831572006854).

Almost surely, 2^{77730051740255} is an apocalyptic number.

77730051740255 is a deficient number, since it is larger than the sum of its proper divisors (15575100369409).

77730051740255 is a wasteful number, since it uses less digits than its factorization.

77730051740255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193786.

The product of its (nonzero) digits is 7203000, while the sum is 53.

The spelling of 77730051740255 in words is "seventy-seven trillion, seven hundred thirty billion, fifty-one million, seven hundred forty thousand, two hundred fifty-five".