78332833823387 has 16 divisors (see below), whose sum is σ = 92061609289440. Its totient is φ = 65709400780800.

The previous prime is 78332833823333. The next prime is 78332833823399.

78332833823387 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 78332833823387 - 2¹⁶ = 78332833757851 is a prime.

It is a super-2 number, since 2×78332833823387² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78332833823687) 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, 101471564 + ... + 102240617.

It is an arithmetic number, because the mean of its divisors is an integer number (5753850580590).

Almost surely, 2^{78332833823387} is an apocalyptic number.

78332833823387 is a deficient number, since it is larger than the sum of its proper divisors (13728775466053).

78332833823387 is a wasteful number, since it uses less digits than its factorization.

78332833823387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203714894.

The product of its digits is 585252864, while the sum is 68.

The spelling of 78332833823387 in words is "seventy-eight trillion, three hundred thirty-two billion, eight hundred thirty-three million, eight hundred twenty-three thousand, three hundred eighty-seven".