778954055 has 8 divisors (see below), whose sum is σ = 1019721744. Its totient is φ = 566512000.

The previous prime is 778954037. The next prime is 778954061. The reversal of 778954055 is 550459877.

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

It is a de Polignac number, because none of the positive numbers 2^k-778954055 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 778953994 and 778954012.

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, 7081346 + ... + 7081455.

It is an arithmetic number, because the mean of its divisors is an integer number (127465218).

Almost surely, 2^778954055 is an apocalyptic number.

778954055 is a deficient number, since it is larger than the sum of its proper divisors (240767689).

778954055 is a wasteful number, since it uses less digits than its factorization.

778954055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14162817.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The square root of 778954055 is about 27909.7483865405. The cubic root of 778954055 is about 920.1047671332.

The spelling of 778954055 in words is "seven hundred seventy-eight million, nine hundred fifty-four thousand, fifty-five".