78732835740 has 288 divisors, whose sum is σ = 277033236480. Its totient is φ = 17932948992.

The previous prime is 78732835729. The next prime is 78732835757. The reversal of 78732835740 is 4753823787.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1891189 + ... + 1932371.

It is an arithmetic number, because the mean of its divisors is an integer number (961920960).

Almost surely, 2^78732835740 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 78732835740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138516618240).

78732835740 is an abundant number, since it is smaller than the sum of its proper divisors (198300400740).

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

78732835740 is a wasteful number, since it uses less digits than its factorization.

78732835740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41273 (or 41268 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 78732835740 in words is "seventy-eight billion, seven hundred thirty-two million, eight hundred thirty-five thousand, seven hundred forty".