78573158155 has 8 divisors (see below), whose sum is σ = 97329331584. Its totient is φ = 60830832000.

The previous prime is 78573158149. The next prime is 78573158159. The reversal of 78573158155 is 55185137587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78573158155 - 2¹¹ = 78573156107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78573158096 and 78573158105.

It is not an unprimeable number, because it can be changed into a prime (78573158159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253461646 + ... + 253461955.

It is an arithmetic number, because the mean of its divisors is an integer number (12166166448).

Almost surely, 2^78573158155 is an apocalyptic number.

78573158155 is a deficient number, since it is larger than the sum of its proper divisors (18756173429).

78573158155 is a wasteful number, since it uses less digits than its factorization.

78573158155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506923637.

The product of its digits is 5880000, while the sum is 55.

The spelling of 78573158155 in words is "seventy-eight billion, five hundred seventy-three million, one hundred fifty-eight thousand, one hundred fifty-five".