77760847346445 has 48 divisors (see below), whose sum is σ = 135670342953600. Its totient is φ = 41201032464000.

The previous prime is 77760847346431. The next prime is 77760847346471. The reversal of 77760847346445 is 54464374806777.

77760847346445 is a `hidden beast` number, since 7 + 7 + 7 + 60 + 84 + 7 + 3 + 46 + 445 = 666.

It is not a de Polignac number, because 77760847346445 - 2³¹ = 77758699862797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4455265 + ... + 13242774.

It is an arithmetic number, because the mean of its divisors is an integer number (2826465478200).

Almost surely, 2^{77760847346445} is an apocalyptic number.

It is an amenable number.

77760847346445 is a deficient number, since it is larger than the sum of its proper divisors (57909495607155).

77760847346445 is a wasteful number, since it uses less digits than its factorization.

77760847346445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17698690 (or 17698687 counting only the distinct ones).

The product of its (nonzero) digits is 2655313920, while the sum is 72.

The spelling of 77760847346445 in words is "seventy-seven trillion, seven hundred sixty billion, eight hundred forty-seven million, three hundred forty-six thousand, four hundred forty-five".