78200897312 has 24 divisors (see below), whose sum is σ = 153984832092. Its totient is φ = 39093638400.

The previous prime is 78200897293. The next prime is 78200897329. The reversal of 78200897312 is 21379800287.

It can be written as a sum of positive squares in 2 ways, for example, as 75935518096 + 2265379216 = 275564^2 + 47596^2 .

It is a super-2 number, since 2×78200897312² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23639 + ... + 396182.

Almost surely, 2^78200897312 is an apocalyptic number.

It is an amenable number.

78200897312 is a deficient number, since it is larger than the sum of its proper divisors (75783934780).

78200897312 is a wasteful number, since it uses less digits than its factorization.

78200897312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425652 (or 425644 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 78200897312 in words is "seventy-eight billion, two hundred million, eight hundred ninety-seven thousand, three hundred twelve".