78082931500 has 192 divisors, whose sum is σ = 201112853760. Its totient is φ = 25924147200.

The previous prime is 78082931497. The next prime is 78082931539. The reversal of 78082931500 is 513928087.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 29654184 + ... + 29656816.

It is an arithmetic number, because the mean of its divisors is an integer number (1047462780).

Almost surely, 2^78082931500 is an apocalyptic number.

78082931500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78082931500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100556426880).

78082931500 is an abundant number, since it is smaller than the sum of its proper divisors (123029922260).

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

78082931500 is a wasteful number, since it uses less digits than its factorization.

78082931500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 78082931500 in words is "seventy-eight billion, eighty-two million, nine hundred thirty-one thousand, five hundred".