105474668778 has 16 divisors (see below), whose sum is σ = 234388152960. Its totient is φ = 35158222908.

The previous prime is 105474668773. The next prime is 105474668839. The reversal of 105474668778 is 877866474501.

105474668778 is a `hidden beast` number, since 1 + 0 + 547 + 4 + 6 + 6 + 87 + 7 + 8 = 666.

It is a super-2 number, since 2×105474668778² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105474668771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976617250 + ... + 976617357.

It is an arithmetic number, because the mean of its divisors is an integer number (14649259560).

Almost surely, 2^105474668778 is an apocalyptic number.

105474668778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105474668778 is an abundant number, since it is smaller than the sum of its proper divisors (128913484182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105474668778 is a wasteful number, since it uses less digits than its factorization.

105474668778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953234618 (or 1953234612 counting only the distinct ones).

The product of its (nonzero) digits is 63221760, while the sum is 63.

The spelling of 105474668778 in words is "one hundred five billion, four hundred seventy-four million, six hundred sixty-eight thousand, seven hundred seventy-eight".