28761677067106 has 4 divisors (see below), whose sum is σ = 43142515600662. Its totient is φ = 14380838533552.

The previous prime is 28761677067083. The next prime is 28761677067107. The reversal of 28761677067106 is 60176077616782.

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., 28761672466081 + 4601025 = 5362991^2 + 2145^2 .

It is not an unprimeable number, because it can be changed into a prime (28761677067107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7190419266775 + ... + 7190419266778.

Almost surely, 2^{28761677067106} is an apocalyptic number.

28761677067106 is a deficient number, since it is larger than the sum of its proper divisors (14380838533556).

28761677067106 is a wasteful number, since it uses less digits than its factorization.

28761677067106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14380838533555.

The product of its (nonzero) digits is 49787136, while the sum is 64.

The spelling of 28761677067106 in words is "twenty-eight trillion, seven hundred sixty-one billion, six hundred seventy-seven million, sixty-seven thousand, one hundred six".