78887011392 has 252 divisors, whose sum is σ = 276877851120. Its totient is φ = 21352730112.

The previous prime is 78887011387. The next prime is 78887011439. The reversal of 78887011392 is 29311078887.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (252).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 462703 + ... + 609809.

Almost surely, 2^78887011392 is an apocalyptic number.

78887011392 is a gapful number since it is divisible by the number (72) 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 78887011392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138438925560).

78887011392 is an abundant number, since it is smaller than the sum of its proper divisors (197990839728).

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

78887011392 is a wasteful number, since it uses less digits than its factorization.

78887011392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147158 (or 147138 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 78887011392 in words is "seventy-eight billion, eight hundred eighty-seven million, eleven thousand, three hundred ninety-two".