7880540775 has 12 divisors (see below), whose sum is σ = 13029160872. Its totient is φ = 4202955040.

The previous prime is 7880540747. The next prime is 7880540777. The reversal of 7880540775 is 5770450887.

It is not a de Polignac number, because 7880540775 - 2⁵ = 7880540743 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7880540777) 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 11 ways as a sum of consecutive naturals, for example, 52536864 + ... + 52537013.

It is an arithmetic number, because the mean of its divisors is an integer number (1085763406).

Almost surely, 2^7880540775 is an apocalyptic number.

7880540775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7880540775 is a deficient number, since it is larger than the sum of its proper divisors (5148620097).

7880540775 is a wasteful number, since it uses less digits than its factorization.

7880540775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105073890 (or 105073885 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 51.

The square root of 7880540775 is about 88772.4099875631. The cubic root of 7880540775 is about 1989.9950990174.

The spelling of 7880540775 in words is "seven billion, eight hundred eighty million, five hundred forty thousand, seven hundred seventy-five".