28394012934136 has 16 divisors (see below), whose sum is σ = 53292173237640. Its totient is φ = 14182766737440.

The previous prime is 28394012934107. The next prime is 28394012934137. The reversal of 28394012934136 is 63143921049382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28394012934137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779957730 + ... + 1779973681.

Almost surely, 2^{28394012934136} is an apocalyptic number.

It is an amenable number.

28394012934136 is a deficient number, since it is larger than the sum of its proper divisors (24898160303504).

28394012934136 is a wasteful number, since it uses less digits than its factorization.

28394012934136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559932414 (or 3559932410 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 28394012934136 in words is "twenty-eight trillion, three hundred ninety-four billion, twelve million, nine hundred thirty-four thousand, one hundred thirty-six".