78248281673378 has 32 divisors (see below), whose sum is σ = 124849398449664. Its totient is φ = 36653068023552.

The previous prime is 78248281673363. The next prime is 78248281673417. The reversal of 78248281673378 is 87337618284287.

It is a super-2 number, since 2×78248281673378² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61137176 + ... + 62403932.

It is an arithmetic number, because the mean of its divisors is an integer number (3901543701552).

Almost surely, 2^{78248281673378} is an apocalyptic number.

78248281673378 is a deficient number, since it is larger than the sum of its proper divisors (46601116776286).

78248281673378 is a wasteful number, since it uses less digits than its factorization.

78248281673378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275146.

The product of its digits is 1213857792, while the sum is 74.

The spelling of 78248281673378 in words is "seventy-eight trillion, two hundred forty-eight billion, two hundred eighty-one million, six hundred seventy-three thousand, three hundred seventy-eight".