6631085782938 has 64 divisors (see below), whose sum is σ = 14060989882368. Its totient is φ = 2081098474560.

The previous prime is 6631085782933. The next prime is 6631085782943. The reversal of 6631085782938 is 8392875801366.

It is an interprime number because it is at equal distance from previous prime (6631085782933) and next prime (6631085782943).

It is not an unprimeable number, because it can be changed into a prime (6631085782933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133809481 + ... + 133859027.

It is an arithmetic number, because the mean of its divisors is an integer number (219702966912).

Almost surely, 2^{6631085782938} is an apocalyptic number.

6631085782938 is an abundant number, since it is smaller than the sum of its proper divisors (7429904099430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6631085782938 is a wasteful number, since it uses less digits than its factorization.

6631085782938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69067.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 6631085782938 in words is "six trillion, six hundred thirty-one billion, eighty-five million, seven hundred eighty-two thousand, nine hundred thirty-eight".