78248281673226 has 64 divisors (see below), whose sum is σ = 179081568000000. Its totient is φ = 22328111180736.

The previous prime is 78248281673207. The next prime is 78248281673249. The reversal of 78248281673226 is 62237618284287.

It is a happy number.

It is a super-2 number, since 2×78248281673226² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648017565 + ... + 648138303.

It is an arithmetic number, because the mean of its divisors is an integer number (2798149500000).

Almost surely, 2^{78248281673226} is an apocalyptic number.

78248281673226 is an abundant number, since it is smaller than the sum of its proper divisors (100833286326774).

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

78248281673226 is a wasteful number, since it uses less digits than its factorization.

78248281673226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140323.

The product of its digits is 173408256, while the sum is 66.

The spelling of 78248281673226 in words is "seventy-eight trillion, two hundred forty-eight billion, two hundred eighty-one million, six hundred seventy-three thousand, two hundred twenty-six".