6287663681 has 16 divisors (see below), whose sum is σ = 7030786560. Its totient is φ = 5583090240.

The previous prime is 6287663671. The next prime is 6287663699. The reversal of 6287663681 is 1863667826.

It is not a de Polignac number, because 6287663681 - 2¹⁴ = 6287647297 is a prime.

It is a super-2 number, since 2×6287663681² = 79069429130732939522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6287663671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71396 + ... + 132938.

It is an arithmetic number, because the mean of its divisors is an integer number (439424160).

Almost surely, 2^6287663681 is an apocalyptic number.

It is an amenable number.

6287663681 is a deficient number, since it is larger than the sum of its proper divisors (743122879).

6287663681 is a wasteful number, since it uses less digits than its factorization.

6287663681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61856.

The product of its digits is 3483648, while the sum is 53.

The square root of 6287663681 is about 79294.7897468680. The cubic root of 6287663681 is about 1845.7084532374.

The spelling of 6287663681 in words is "six billion, two hundred eighty-seven million, six hundred sixty-three thousand, six hundred eighty-one".