32978162855 has 32 divisors (see below), whose sum is σ = 44751052800. Its totient is φ = 23113036800.

The previous prime is 32978162851. The next prime is 32978162873. The reversal of 32978162855 is 55826187923.

It is a happy number.

It is not a de Polignac number, because 32978162855 - 2² = 32978162851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32978162855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32978162851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367031 + ... + 447959.

It is an arithmetic number, because the mean of its divisors is an integer number (1398470400).

Almost surely, 2^32978162855 is an apocalyptic number.

32978162855 is a deficient number, since it is larger than the sum of its proper divisors (11772889945).

32978162855 is a wasteful number, since it uses less digits than its factorization.

32978162855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81215.

The product of its digits is 7257600, while the sum is 56.

The spelling of 32978162855 in words is "thirty-two billion, nine hundred seventy-eight million, one hundred sixty-two thousand, eight hundred fifty-five".