78806045003 has 16 divisors (see below), whose sum is σ = 92388527616. Its totient is φ = 65812521600.

The previous prime is 78806044991. The next prime is 78806045027. The reversal of 78806045003 is 30054060887.

It is a happy number.

It is not a de Polignac number, because 78806045003 - 2¹⁸ = 78805782859 is a prime.

It is a super-2 number, since 2×78806045003² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78806045063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205751 + ... + 447152.

It is an arithmetic number, because the mean of its divisors is an integer number (5774282976).

Almost surely, 2^78806045003 is an apocalyptic number.

78806045003 is a deficient number, since it is larger than the sum of its proper divisors (13582482613).

78806045003 is a wasteful number, since it uses less digits than its factorization.

78806045003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653354.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 78806045003 in words is "seventy-eight billion, eight hundred six million, forty-five thousand, three".