2475806639 has 4 divisors (see below), whose sum is σ = 2528483424. Its totient is φ = 2423129856.

The previous prime is 2475806629. The next prime is 2475806651. The reversal of 2475806639 is 9366085742.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2475806639 - 2²⁰ = 2474758063 is a prime.

It is a super-2 number, since 2×2475806639² = 12259237027432952642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2475806629) 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 3 ways as a sum of consecutive naturals, for example, 26338322 + ... + 26338415.

It is an arithmetic number, because the mean of its divisors is an integer number (632120856).

Almost surely, 2^2475806639 is an apocalyptic number.

2475806639 is a deficient number, since it is larger than the sum of its proper divisors (52676785).

2475806639 is an equidigital number, since it uses as much as digits as its factorization.

2475806639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52676784.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 2475806639 is about 49757.4782218713. The cubic root of 2475806639 is about 1352.8165501945.

The spelling of 2475806639 in words is "two billion, four hundred seventy-five million, eight hundred six thousand, six hundred thirty-nine".