32406336861981 has 16 divisors (see below), whose sum is σ = 43276599673920. Its totient is φ = 21570150471680.

The previous prime is 32406336861979. The next prime is 32406336862019. The reversal of 32406336861981 is 18916863360423.

It is a cyclic number.

It is not a de Polignac number, because 32406336861981 - 2¹ = 32406336861979 is a prime.

It is a super-2 number, since 2×32406336861981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32406336861281) 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, 155483866 + ... + 155692148.

It is an arithmetic number, because the mean of its divisors is an integer number (2704787479620).

Almost surely, 2^{32406336861981} is an apocalyptic number.

It is an amenable number.

32406336861981 is a deficient number, since it is larger than the sum of its proper divisors (10870262811939).

32406336861981 is a wasteful number, since it uses less digits than its factorization.

32406336861981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289836.

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 32406336861981 in words is "thirty-two trillion, four hundred six billion, three hundred thirty-six million, eight hundred sixty-one thousand, nine hundred eighty-one".