78152310271728 has 200 divisors, whose sum is σ = 282009924197760. Its totient is φ = 20299301343360.

The previous prime is 78152310271727. The next prime is 78152310271771. The reversal of 78152310271728 is 82717201325187.

78152310271728 is a `hidden beast` number, since 7 + 8 + 1 + 52 + 310 + 271 + 7 + 2 + 8 = 666.

It is a super-2 number, since 2×78152310271728² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78152310271727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 391476238 + ... + 391675821.

Almost surely, 2^{78152310271728} is an apocalyptic number.

It is an amenable number.

78152310271728 is an abundant number, since it is smaller than the sum of its proper divisors (203857613926032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78152310271728 is a wasteful number, since it uses less digits than its factorization.

78152310271728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783152097 (or 783152082 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 54.

The spelling of 78152310271728 in words is "seventy-eight trillion, one hundred fifty-two billion, three hundred ten million, two hundred seventy-one thousand, seven hundred twenty-eight".