77850103525245 has 12 divisors (see below), whose sum is σ = 134940179443836. Its totient is φ = 41520055213440.

The previous prime is 77850103525223. The next prime is 77850103525261. The reversal of 77850103525245 is 54252530105877.

77850103525245 is a `hidden beast` number, since 7 + 7 + 8 + 5 + 0 + 103 + 5 + 2 + 524 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22117936226841 + 55732167298404 = 4702971^2 + 7465398^2 .

It is not a de Polignac number, because 77850103525245 - 2²¹ = 77850101428093 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77850103525191 and 77850103525200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 865001150236 + ... + 865001150325.

It is an arithmetic number, because the mean of its divisors is an integer number (11245014953653).

Almost surely, 2^{77850103525245} is an apocalyptic number.

It is an amenable number.

77850103525245 is a deficient number, since it is larger than the sum of its proper divisors (57090075918591).

77850103525245 is a wasteful number, since it uses less digits than its factorization.

77850103525245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730002300572 (or 1730002300569 counting only the distinct ones).

The product of its (nonzero) digits is 11760000, while the sum is 54.

The spelling of 77850103525245 in words is "seventy-seven trillion, eight hundred fifty billion, one hundred three million, five hundred twenty-five thousand, two hundred forty-five".