12631947536 has 40 divisors (see below), whose sum is σ = 27744265920. Its totient is φ = 5523278976.

The previous prime is 12631947533. The next prime is 12631947539. The reversal of 12631947536 is 63574913621.

It is an interprime number because it is at equal distance from previous prime (12631947533) and next prime (12631947539).

It is not an unprimeable number, because it can be changed into a prime (12631947533) 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, 1594220 + ... + 1602123.

It is an arithmetic number, because the mean of its divisors is an integer number (693606648).

Almost surely, 2^12631947536 is an apocalyptic number.

12631947536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12631947536 is an abundant number, since it is smaller than the sum of its proper divisors (15112318384).

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

12631947536 is a wasteful number, since it uses less digits than its factorization.

12631947536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196383 (or 3196377 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The spelling of 12631947536 in words is "twelve billion, six hundred thirty-one million, nine hundred forty-seven thousand, five hundred thirty-six".