32961445981 has 16 divisors (see below), whose sum is σ = 35533440000. Its totient is φ = 30486044160.

The previous prime is 32961445973. The next prime is 32961446003. The reversal of 32961445981 is 18954416923.

It is a cyclic number.

It is not a de Polignac number, because 32961445981 - 2³ = 32961445973 is a prime.

It is a super-2 number, since 2×32961445981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32962445981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872031 + ... + 909043.

It is an arithmetic number, because the mean of its divisors is an integer number (2220840000).

Almost surely, 2^32961445981 is an apocalyptic number.

32961445981 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32961445981 is a deficient number, since it is larger than the sum of its proper divisors (2571994019).

32961445981 is a wasteful number, since it uses less digits than its factorization.

32961445981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38316.

The product of its digits is 1866240, while the sum is 52.

The spelling of 32961445981 in words is "thirty-two billion, nine hundred sixty-one million, four hundred forty-five thousand, nine hundred eighty-one".