32648777781 has 16 divisors (see below), whose sum is σ = 43932243840. Its totient is φ = 21565716480.

The previous prime is 32648777717. The next prime is 32648777783. The reversal of 32648777781 is 18777784623.

It is not a de Polignac number, because 32648777781 - 2⁶ = 32648777717 is a prime.

It is a super-2 number, since 2×32648777781² (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 (32648777783) 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, 1059096 + ... + 1089486.

It is an arithmetic number, because the mean of its divisors is an integer number (2745765240).

Almost surely, 2^32648777781 is an apocalyptic number.

It is an amenable number.

32648777781 is a deficient number, since it is larger than the sum of its proper divisors (11283466059).

32648777781 is a wasteful number, since it uses less digits than its factorization.

32648777781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33676.

The product of its digits is 22127616, while the sum is 60.

The spelling of 32648777781 in words is "thirty-two billion, six hundred forty-eight million, seven hundred seventy-seven thousand, seven hundred eighty-one".