78328499482387 has 12 divisors (see below), whose sum is σ = 99400173740856. Its totient is φ = 61035194401440.

The previous prime is 78328499482379. The next prime is 78328499482423.

78328499482387 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78328499482387 - 2³ = 78328499482379 is a prime.

It is a super-2 number, since 2×78328499482387² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78328499482387.

It is not an unprimeable number, because it can be changed into a prime (78328499482087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72660945178 + ... + 72660946255.

It is an arithmetic number, because the mean of its divisors is an integer number (8283347811738).

Almost surely, 2^{78328499482387} is an apocalyptic number.

78328499482387 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

78328499482387 is a deficient number, since it is larger than the sum of its proper divisors (21071674258469).

78328499482387 is a wasteful number, since it uses less digits than its factorization.

78328499482387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145321891458 (or 145321891451 counting only the distinct ones).

The product of its digits is 9364045824, while the sum is 82.

The spelling of 78328499482387 in words is "seventy-eight trillion, three hundred twenty-eight billion, four hundred ninety-nine million, four hundred eighty-two thousand, three hundred eighty-seven".