254938710778 has 4 divisors (see below), whose sum is σ = 382408066170. Its totient is φ = 127469355388.

The previous prime is 254938710769. The next prime is 254938710787. The reversal of 254938710778 is 877017839452.

254938710778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (254938710769) and next prime (254938710787).

It can be written as a sum of positive squares in only one way, i.e., 206109644049 + 48829066729 = 453993^2 + 220973^2 .

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 as a sum of consecutive naturals, namely, 63734677693 + ... + 63734677696.

Almost surely, 2^254938710778 is an apocalyptic number.

254938710778 is a deficient number, since it is larger than the sum of its proper divisors (127469355392).

254938710778 is a wasteful number, since it uses less digits than its factorization.

254938710778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127469355391.

The product of its (nonzero) digits is 23708160, while the sum is 61.

The spelling of 254938710778 in words is "two hundred fifty-four billion, nine hundred thirty-eight million, seven hundred ten thousand, seven hundred seventy-eight".