2471139836 has 12 divisors (see below), whose sum is σ = 4717630680. Its totient is φ = 1123245360.

The previous prime is 2471139833. The next prime is 2471139857. The reversal of 2471139836 is 6389311742.

It is a super-2 number, since 2×2471139836² = 12213064178132213792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 56162269 = 2471139836 / (2 + 4 + 7 + 1 + 1 + 3 + 9 + 8 + 3 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2471139833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28081091 + ... + 28081178.

It is an arithmetic number, because the mean of its divisors is an integer number (393135890).

Almost surely, 2^2471139836 is an apocalyptic number.

It is an amenable number.

2471139836 is a deficient number, since it is larger than the sum of its proper divisors (2246490844).

2471139836 is a wasteful number, since it uses less digits than its factorization.

2471139836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56162284 (or 56162282 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 2471139836 is about 49710.5606083858. The cubic root of 2471139836 is about 1351.9660126781.

The spelling of 2471139836 in words is "two billion, four hundred seventy-one million, one hundred thirty-nine thousand, eight hundred thirty-six".