79386145450 has 24 divisors (see below), whose sum is σ = 151259654700. Its totient is φ = 30979958400.

The previous prime is 79386145427. The next prime is 79386145457. The reversal of 79386145450 is 5454168397.

It can be written as a sum of positive squares in 6 ways, for example, as 2817167929 + 76568977521 = 53077^2 + 276711^2 .

It is not an unprimeable number, because it can be changed into a prime (79386145457) 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 11 ways as a sum of consecutive naturals, for example, 19360425 + ... + 19364524.

Almost surely, 2^79386145450 is an apocalyptic number.

79386145450 is a deficient number, since it is larger than the sum of its proper divisors (71873509250).

79386145450 is a wasteful number, since it uses less digits than its factorization.

79386145450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38725002 (or 38724997 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 79386145450 in words is "seventy-nine billion, three hundred eighty-six million, one hundred forty-five thousand, four hundred fifty".