78180754550525 has 24 divisors (see below), whose sum is σ = 107752658504544. Its totient is φ = 55785924334400.

The previous prime is 78180754550471. The next prime is 78180754550531. The reversal of 78180754550525 is 52505545708187.

It is not a de Polignac number, because 78180754550525 - 2³⁴ = 78163574681341 is a prime.

It is a super-2 number, since 2×78180754550525² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2682001019 + ... + 2682030168.

It is an arithmetic number, because the mean of its divisors is an integer number (4489694104356).

Almost surely, 2^{78180754550525} is an apocalyptic number.

It is an amenable number.

78180754550525 is a deficient number, since it is larger than the sum of its proper divisors (29571903954019).

78180754550525 is a wasteful number, since it uses less digits than its factorization.

78180754550525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5364031261 (or 5364031256 counting only the distinct ones).

The product of its (nonzero) digits is 78400000, while the sum is 62.

The spelling of 78180754550525 in words is "seventy-eight trillion, one hundred eighty billion, seven hundred fifty-four million, five hundred fifty thousand, five hundred twenty-five".