77454842055 has 8 divisors (see below), whose sum is σ = 123927747312. Its totient is φ = 41309249088.

The previous prime is 77454842011. The next prime is 77454842117. The reversal of 77454842055 is 55024845477.

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

It is not a de Polignac number, because 77454842055 - 2¹² = 77454837959 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 77454841989 and 77454842007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2581828054 + ... + 2581828083.

It is an arithmetic number, because the mean of its divisors is an integer number (15490968414).

Almost surely, 2^77454842055 is an apocalyptic number.

77454842055 is a deficient number, since it is larger than the sum of its proper divisors (46472905257).

77454842055 is a wasteful number, since it uses less digits than its factorization.

77454842055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163656145.

The product of its (nonzero) digits is 6272000, while the sum is 51.

The spelling of 77454842055 in words is "seventy-seven billion, four hundred fifty-four million, eight hundred forty-two thousand, fifty-five".