78936021360 has 480 divisors, whose sum is σ = 320336640000. Its totient is φ = 17016459264.

The previous prime is 78936021349. The next prime is 78936021377. The reversal of 78936021360 is 6312063987.

78936021360 is a `hidden beast` number, since 7 + 8 + 9 + 3 + 602 + 1 + 36 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 22884916 + ... + 22888364.

It is an arithmetic number, because the mean of its divisors is an integer number (667368000).

Almost surely, 2^78936021360 is an apocalyptic number.

78936021360 is a gapful number since it is divisible by the number (70) 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 78936021360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160168320000).

78936021360 is an abundant number, since it is smaller than the sum of its proper divisors (241400618640).

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

78936021360 is a wasteful number, since it uses less digits than its factorization.

78936021360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 78936021360 in words is "seventy-eight billion, nine hundred thirty-six million, twenty-one thousand, three hundred sixty".