6631142357 has 8 divisors (see below), whose sum is σ = 7589714496. Its totient is φ = 5675386752.

The previous prime is 6631142333. The next prime is 6631142381. The reversal of 6631142357 is 7532411366.

It is an interprime number because it is at equal distance from previous prime (6631142333) and next prime (6631142381).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6631142357 - 2⁶ = 6631142293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6631142357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631141357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699083 + ... + 708504.

It is an arithmetic number, because the mean of its divisors is an integer number (948714312).

Almost surely, 2^6631142357 is an apocalyptic number.

It is an amenable number.

6631142357 is a deficient number, since it is larger than the sum of its proper divisors (958572139).

6631142357 is a wasteful number, since it uses less digits than its factorization.

6631142357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408267.

The product of its digits is 90720, while the sum is 38.

The square root of 6631142357 is about 81431.8264378247. The cubic root of 6631142357 is about 1878.7231367644.

The spelling of 6631142357 in words is "six billion, six hundred thirty-one million, one hundred forty-two thousand, three hundred fifty-seven".