606121879394 has 4 divisors (see below), whose sum is σ = 909182819094. Its totient is φ = 303060939696.

The previous prime is 606121879357. The next prime is 606121879397. The reversal of 606121879394 is 493978121606.

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

It can be written as a sum of positive squares in only one way, i.e., 462774075625 + 143347803769 = 680275^2 + 378613^2 .

It is a super-2 number, since 2×606121879394² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (606121879397) by changing a digit.

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, 151530469847 + ... + 151530469850.

Almost surely, 2^606121879394 is an apocalyptic number.

606121879394 is a deficient number, since it is larger than the sum of its proper divisors (303060939700).

606121879394 is a wasteful number, since it uses less digits than its factorization.

606121879394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303060939699.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 606121879394 in words is "six hundred six billion, one hundred twenty-one million, eight hundred seventy-nine thousand, three hundred ninety-four".