78322604450 has 12 divisors (see below), whose sum is σ = 145680044370. Its totient is φ = 31329041760.

The previous prime is 78322604449. The next prime is 78322604497. The reversal of 78322604450 is 5440622387.

It can be written as a sum of positive squares in 3 ways, for example, as 41215902289 + 37106702161 = 203017^2 + 192631^2 .

It is a super-2 number, since 2×78322604450² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78322604398 and 78322604407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 783225995 + ... + 783226094.

Almost surely, 2^78322604450 is an apocalyptic number.

78322604450 is a deficient number, since it is larger than the sum of its proper divisors (67357439920).

78322604450 is a wasteful number, since it uses less digits than its factorization.

78322604450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566452101 (or 1566452096 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 78322604450 in words is "seventy-eight billion, three hundred twenty-two million, six hundred four thousand, four hundred fifty".