78150208619 has 16 divisors (see below), whose sum is σ = 91368699840. Its totient is φ = 65462100480.

The previous prime is 78150208537. The next prime is 78150208627. The reversal of 78150208619 is 91680205187.

It is a de Polignac number, because none of the positive numbers 2^k-78150208619 is a prime.

It is a super-2 number, since 2×78150208619² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78150208319) 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, 645842 + ... + 757239.

It is an arithmetic number, because the mean of its divisors is an integer number (5710543740).

Almost surely, 2^78150208619 is an apocalyptic number.

78150208619 is a deficient number, since it is larger than the sum of its proper divisors (13218491221).

78150208619 is a wasteful number, since it uses less digits than its factorization.

78150208619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403270.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 78150208619 in words is "seventy-eight billion, one hundred fifty million, two hundred eight thousand, six hundred nineteen".