78226574162357 has 6 divisors (see below), whose sum is σ = 83098817536098. Its totient is φ = 73625010976064.

The previous prime is 78226574162339. The next prime is 78226574162411. The reversal of 78226574162357 is 75326147562287.

It can be written as a sum of positive squares in 3 ways, for example, as 59510100489841 + 18716473672516 = 7714279^2 + 4326254^2 .

It is not a de Polignac number, because 78226574162357 - 2³⁰ = 78225500420533 is a prime.

It is a super-2 number, since 2×78226574162357² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78226574162293 and 78226574162302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78226574165357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135340093418 + ... + 135340093995.

It is an arithmetic number, because the mean of its divisors is an integer number (13849802922683).

Almost surely, 2^{78226574162357} is an apocalyptic number.

It is an amenable number.

78226574162357 is a deficient number, since it is larger than the sum of its proper divisors (4872243373741).

78226574162357 is a wasteful number, since it uses less digits than its factorization.

78226574162357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270680187447 (or 270680187430 counting only the distinct ones).

The product of its digits is 237081600, while the sum is 65.

The spelling of 78226574162357 in words is "seventy-eight trillion, two hundred twenty-six billion, five hundred seventy-four million, one hundred sixty-two thousand, three hundred fifty-seven".