77755280054 has 16 divisors (see below), whose sum is σ = 117445012992. Its totient is φ = 38607335208.

The previous prime is 77755280023. The next prime is 77755280063. The reversal of 77755280054 is 45008255777.

It is a junction number, because it is equal to n+sod(n) for n = 77755279984 and 77755280011.

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, 301187 + ... + 496209.

It is an arithmetic number, because the mean of its divisors is an integer number (7340313312).

Almost surely, 2^77755280054 is an apocalyptic number.

77755280054 is a deficient number, since it is larger than the sum of its proper divisors (39689732938).

77755280054 is a wasteful number, since it uses less digits than its factorization.

77755280054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196411.

The product of its (nonzero) digits is 2744000, while the sum is 50.

The spelling of 77755280054 in words is "seventy-seven billion, seven hundred fifty-five million, two hundred eighty thousand, fifty-four".