32686018421 has 64 divisors (see below), whose sum is σ = 41510092800. Its totient is φ = 25110259200.

The previous prime is 32686018403. The next prime is 32686018423. The reversal of 32686018421 is 12481068623.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32686018421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32686018423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39427835 + ... + 39428663.

It is an arithmetic number, because the mean of its divisors is an integer number (648595200).

Almost surely, 2^32686018421 is an apocalyptic number.

32686018421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32686018421 is a deficient number, since it is larger than the sum of its proper divisors (8824074379).

32686018421 is a wasteful number, since it uses less digits than its factorization.

32686018421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 32686018421 in words is "thirty-two billion, six hundred eighty-six million, eighteen thousand, four hundred twenty-one".