1008755403778 has 8 divisors (see below), whose sum is σ = 1541682787068. Its totient is φ = 494861141424.

The previous prime is 1008755403767. The next prime is 1008755403781. The reversal of 1008755403778 is 8773045578001.

It can be written as a sum of positive squares in 2 ways, for example, as 954183173329 + 54572230449 = 976823^2 + 233607^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4758280101 + ... + 4758280312.

Almost surely, 2^{1008755403778} is an apocalyptic number.

1008755403778 is a deficient number, since it is larger than the sum of its proper divisors (532927383290).

1008755403778 is an equidigital number, since it uses as much as digits as its factorization.

1008755403778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9516560468.

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 1008755403778 in words is "one trillion, eight billion, seven hundred fifty-five million, four hundred three thousand, seven hundred seventy-eight".