78098845752 has 24 divisors (see below), whose sum is σ = 211517707440. Its totient is φ = 26032948560.

The previous prime is 78098845751. The next prime is 78098845807. The reversal of 78098845752 is 25754889087.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 78098845752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78098845751) 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, 542353024 + ... + 542353167.

It is an arithmetic number, because the mean of its divisors is an integer number (8813237810).

Almost surely, 2^78098845752 is an apocalyptic number.

78098845752 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78098845752 is an abundant number, since it is smaller than the sum of its proper divisors (133418861688).

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

78098845752 is a wasteful number, since it uses less digits than its factorization.

78098845752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084706203 (or 1084706196 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 63.

The spelling of 78098845752 in words is "seventy-eight billion, ninety-eight million, eight hundred forty-five thousand, seven hundred fifty-two".