6875131631 has 4 divisors (see below), whose sum is σ = 6893272200. Its totient is φ = 6856991064.

The previous prime is 6875131603. The next prime is 6875131633. The reversal of 6875131631 is 1361315786.

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 6875131631 - 2⁶ = 6875131567 is a prime.

It is a super-2 number, since 2×6875131631² = 94534869887153440322, 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 (6875131633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9069716 + ... + 9070473.

It is an arithmetic number, because the mean of its divisors is an integer number (1723318050).

Almost surely, 2^6875131631 is an apocalyptic number.

6875131631 is a deficient number, since it is larger than the sum of its proper divisors (18140569).

6875131631 is a wasteful number, since it uses less digits than its factorization.

6875131631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140568.

The product of its digits is 90720, while the sum is 41.

The square root of 6875131631 is about 82916.4135198816. The cubic root of 6875131631 is about 1901.4883657320.

The spelling of 6875131631 in words is "six billion, eight hundred seventy-five million, one hundred thirty-one thousand, six hundred thirty-one".