78322511300 has 72 divisors (see below), whose sum is σ = 186220997760. Its totient is φ = 28356451200.

The previous prime is 78322511287. The next prime is 78322511321. The reversal of 78322511300 is 311522387.

It is a super-2 number, since 2×78322511300² (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 23 ways as a sum of consecutive naturals, for example, 96437 + ... + 407363.

Almost surely, 2^78322511300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78322511300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93110498880).

78322511300 is an abundant number, since it is smaller than the sum of its proper divisors (107898486460).

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

78322511300 is a wasteful number, since it uses less digits than its factorization.

78322511300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311181 (or 311174 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 78322511300 in words is "seventy-eight billion, three hundred twenty-two million, five hundred eleven thousand, three hundred".