5281131637 has 16 divisors (see below), whose sum is σ = 5599173888. Its totient is φ = 4970782080.

The previous prime is 5281131631. The next prime is 5281131659. The reversal of 5281131637 is 7361311825.

It is a de Polignac number, because none of the positive numbers 2^k-5281131637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5281131596 and 5281131605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281131631) 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 15 ways as a sum of consecutive naturals, for example, 770608 + ... + 777430.

It is an arithmetic number, because the mean of its divisors is an integer number (349948368).

Almost surely, 2^5281131637 is an apocalyptic number.

It is an amenable number.

5281131637 is a deficient number, since it is larger than the sum of its proper divisors (318042251).

5281131637 is a wasteful number, since it uses less digits than its factorization.

5281131637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380.

The product of its digits is 30240, while the sum is 37.

The square root of 5281131637 is about 72671.3949019833. The cubic root of 5281131637 is about 1741.4419320853.

It can be divided in two parts, 52811 and 31637, that added together give a palindrome (84448).

The spelling of 5281131637 in words is "five billion, two hundred eighty-one million, one hundred thirty-one thousand, six hundred thirty-seven".