78273725872851 has 12 divisors (see below), whose sum is σ = 113081992470720. Its totient is φ = 52173278997840.

The previous prime is 78273725872817. The next prime is 78273725872873. The reversal of 78273725872851 is 15827852737287.

78273725872851 is a `hidden beast` number, since 7 + 8 + 2 + 7 + 37 + 2 + 587 + 2 + 8 + 5 + 1 = 666.

It is not a de Polignac number, because 78273725872851 - 2⁶ = 78273725872787 is a prime.

It is a super-3 number, since 3×78273725872851³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 78273725872851.

It is not an unprimeable number, because it can be changed into a prime (78273725872891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 767022595 + ... + 767124636.

It is an arithmetic number, because the mean of its divisors is an integer number (9423499372560).

Almost surely, 2^{78273725872851} is an apocalyptic number.

78273725872851 is a deficient number, since it is larger than the sum of its proper divisors (34808266597869).

78273725872851 is a wasteful number, since it uses less digits than its factorization.

78273725872851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534152906 (or 1534152903 counting only the distinct ones).

The product of its digits is 737587200, while the sum is 72.

The spelling of 78273725872851 in words is "seventy-eight trillion, two hundred seventy-three billion, seven hundred twenty-five million, eight hundred seventy-two thousand, eight hundred fifty-one".