78728493363 has 16 divisors (see below), whose sum is σ = 115178988960. Its totient is φ = 47534183424.

The previous prime is 78728493343. The next prime is 78728493377. The reversal of 78728493363 is 36339482787.

It is not a de Polignac number, because 78728493363 - 2³⁰ = 77654751539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78728493297 and 78728493306.

It is not an unprimeable number, because it can be changed into a prime (78728493343) 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, 19042078 + ... + 19046211.

It is an arithmetic number, because the mean of its divisors is an integer number (7198686810).

Almost surely, 2^78728493363 is an apocalyptic number.

78728493363 is a deficient number, since it is larger than the sum of its proper divisors (36450495597).

78728493363 is a wasteful number, since it uses less digits than its factorization.

78728493363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38088358.

The product of its digits is 36578304, while the sum is 60.

The spelling of 78728493363 in words is "seventy-eight billion, seven hundred twenty-eight million, four hundred ninety-three thousand, three hundred sixty-three".