78864453185364 has 288 divisors, whose sum is σ = 274730260533120. Its totient is φ = 19279316044800.

The previous prime is 78864453185317. The next prime is 78864453185377. The reversal of 78864453185364 is 46358135446887.

78864453185364 is a `hidden beast` number, since 7 + 8 + 8 + 6 + 4 + 4 + 531 + 85 + 3 + 6 + 4 = 666.

It is a super-2 number, since 2×78864453185364² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78864453185292 and 78864453185301.

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, 38856867 + ... + 40836074.

It is an arithmetic number, because the mean of its divisors is an integer number (953924515740).

Almost surely, 2^{78864453185364} is an apocalyptic number.

It is an amenable number.

78864453185364 is an abundant number, since it is smaller than the sum of its proper divisors (195865807347756).

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

78864453185364 is a wasteful number, since it uses less digits than its factorization.

78864453185364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79692996 (or 79692981 counting only the distinct ones).

The product of its digits is 1857945600, while the sum is 72.

The spelling of 78864453185364 in words is "seventy-eight trillion, eight hundred sixty-four billion, four hundred fifty-three million, one hundred eighty-five thousand, three hundred sixty-four".