78200314100 has 18 divisors (see below), whose sum is σ = 169694681814. Its totient is φ = 31280125600.

The previous prime is 78200314033. The next prime is 78200314103. The reversal of 78200314100 is 141300287.

It can be written as a sum of positive squares in 3 ways, for example, as 5383450384 + 72816863716 = 73372^2 + 269846^2 .

It is a super-2 number, since 2×78200314100² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78200314100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78200314103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 391001471 + ... + 391001670.

It is an arithmetic number, because the mean of its divisors is an integer number (9427482323).

Almost surely, 2^78200314100 is an apocalyptic number.

It is an amenable number.

78200314100 is an abundant number, since it is smaller than the sum of its proper divisors (91494367714).

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

78200314100 is a wasteful number, since it uses less digits than its factorization.

78200314100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782003155 (or 782003148 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 78200314100 its reverse (141300287), we get a palindrome (78341614387).

The spelling of 78200314100 in words is "seventy-eight billion, two hundred million, three hundred fourteen thousand, one hundred".