678030015106 has 4 divisors (see below), whose sum is σ = 1017045022662. Its totient is φ = 339015007552.

The previous prime is 678030015083. The next prime is 678030015107. The reversal of 678030015106 is 601510030876.

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., 607712234481 + 70317780625 = 779559^2 + 265175^2 .

It is not an unprimeable number, because it can be changed into a prime (678030015107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169507503775 + ... + 169507503778.

Almost surely, 2^678030015106 is an apocalyptic number.

678030015106 is a deficient number, since it is larger than the sum of its proper divisors (339015007556).

678030015106 is a wasteful number, since it uses less digits than its factorization.

678030015106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339015007555.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 678030015106 in words is "six hundred seventy-eight billion, thirty million, fifteen thousand, one hundred six".