7775254382085 has 24 divisors (see below), whose sum is σ = 13477577975160. Its totient is φ = 4146657604992.

The previous prime is 7775254382069. The next prime is 7775254382107. The reversal of 7775254382085 is 5802834525777.

It is a happy number.

7775254382085 is a `hidden beast` number, since 7 + 7 + 7 + 5 + 2 + 543 + 8 + 2 + 0 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1208781506916 + 6566472875169 = 1099446^2 + 2562513^2 .

It is not a de Polignac number, because 7775254382085 - 2⁴ = 7775254382069 is a prime.

It is a super-2 number, since 2×7775254382085² (a number of 27 digits) contains 22 as substring.

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, 1705354 + ... + 4296363.

It is an arithmetic number, because the mean of its divisors is an integer number (561565748965).

Almost surely, 2^{7775254382085} is an apocalyptic number.

It is an amenable number.

7775254382085 is a deficient number, since it is larger than the sum of its proper divisors (5702323593075).

7775254382085 is a wasteful number, since it uses less digits than its factorization.

7775254382085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030517 (or 6030514 counting only the distinct ones).

The product of its (nonzero) digits is 131712000, while the sum is 63.

The spelling of 7775254382085 in words is "seven trillion, seven hundred seventy-five billion, two hundred fifty-four million, three hundred eighty-two thousand, eighty-five".