78754507968 has 112 divisors (see below), whose sum is σ = 212889327840. Its totient is φ = 25688408064.

The previous prime is 78754507967. The next prime is 78754508009. The reversal of 78754507968 is 86970545787.

It is a junction number, because it is equal to n+sod(n) for n = 78754507899 and 78754507908.

It is not an unprimeable number, because it can be changed into a prime (78754507967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633780 + ... + 1681292.

It is an arithmetic number, because the mean of its divisors is an integer number (1900797570).

Almost surely, 2^78754507968 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 78754507968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106444663920).

78754507968 is an abundant number, since it is smaller than the sum of its proper divisors (134134819872).

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

78754507968 is a wasteful number, since it uses less digits than its factorization.

78754507968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47714 (or 47704 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 66.

The spelling of 78754507968 in words is "seventy-eight billion, seven hundred fifty-four million, five hundred seven thousand, nine hundred sixty-eight".