7860825775 has 48 divisors (see below), whose sum is σ = 11045864448. Its totient is φ = 5497632000.

The previous prime is 7860825773. The next prime is 7860825809. The reversal of 7860825775 is 5775280687.

It is a happy number.

It is not a de Polignac number, because 7860825775 - 2¹ = 7860825773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7860825773) 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 47 ways as a sum of consecutive naturals, for example, 1386747 + ... + 1392403.

It is an arithmetic number, because the mean of its divisors is an integer number (230122176).

Almost surely, 2^7860825775 is an apocalyptic number.

7860825775 is a deficient number, since it is larger than the sum of its proper divisors (3185038673).

7860825775 is a wasteful number, since it uses less digits than its factorization.

7860825775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872 (or 5867 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 55.

The square root of 7860825775 is about 88661.2980674206. The cubic root of 7860825775 is about 1988.3342351818.

The spelling of 7860825775 in words is "seven billion, eight hundred sixty million, eight hundred twenty-five thousand, seven hundred seventy-five".