78722142760 has 128 divisors (see below), whose sum is σ = 198827965440. Its totient is φ = 27905126400.

The previous prime is 78722142727. The next prime is 78722142761. The reversal of 78722142760 is 6724122787.

It is a self number, because there is not a number n which added to its sum of digits gives 78722142760.

It is not an unprimeable number, because it can be changed into a prime (78722142761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729495 + ... + 830425.

It is an arithmetic number, because the mean of its divisors is an integer number (1553343480).

Almost surely, 2^78722142760 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 78722142760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99413982720).

78722142760 is an abundant number, since it is smaller than the sum of its proper divisors (120105822680).

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

78722142760 is a wasteful number, since it uses less digits than its factorization.

78722142760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101027 (or 101023 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 46.

The spelling of 78722142760 in words is "seventy-eight billion, seven hundred twenty-two million, one hundred forty-two thousand, seven hundred sixty".