32766311778 has 32 divisors (see below), whose sum is σ = 68225778816. Its totient is φ = 10481332608.

The previous prime is 32766311771. The next prime is 32766311797. The reversal of 32766311778 is 87711366723.

It is a self number, because there is not a number n which added to its sum of digits gives 32766311778.

It is not an unprimeable number, because it can be changed into a prime (32766311771) 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, 994726 + ... + 1027137.

It is an arithmetic number, because the mean of its divisors is an integer number (2132055588).

Almost surely, 2^32766311778 is an apocalyptic number.

32766311778 is an abundant number, since it is smaller than the sum of its proper divisors (35459467038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32766311778 is a wasteful number, since it uses less digits than its factorization.

32766311778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021978.

The product of its digits is 1778112, while the sum is 51.

Subtracting 32766311778 from its reverse (87711366723), we obtain a palindrome (54945054945).

The spelling of 32766311778 in words is "thirty-two billion, seven hundred sixty-six million, three hundred eleven thousand, seven hundred seventy-eight".