606055787978 has 4 divisors (see below), whose sum is σ = 909083681970. Its totient is φ = 303027893988.

The previous prime is 606055787959. The next prime is 606055788011. The reversal of 606055787978 is 879787550606.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 879787550606 = 2 ⋅439893775303.

It can be written as a sum of positive squares in only one way, i.e., 498092943049 + 107962844929 = 705757^2 + 328577^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151513946993 + ... + 151513946996.

Almost surely, 2^606055787978 is an apocalyptic number.

606055787978 is a deficient number, since it is larger than the sum of its proper divisors (303027893992).

606055787978 is a wasteful number, since it uses less digits than its factorization.

606055787978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303027893991.

The product of its (nonzero) digits is 177811200, while the sum is 68.

The spelling of 606055787978 in words is "six hundred six billion, fifty-five million, seven hundred eighty-seven thousand, nine hundred seventy-eight".