32778338765650 has 48 divisors (see below), whose sum is σ = 64601271432576. Its totient is φ = 12331052913920.

The previous prime is 32778338765639. The next prime is 32778338765657. The reversal of 32778338765650 is 5656783387723.

It is a self number, because there is not a number n which added to its sum of digits gives 32778338765650.

It is not an unprimeable number, because it can be changed into a prime (32778338765657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12942934 + ... + 15266833.

It is an arithmetic number, because the mean of its divisors is an integer number (1345859821512).

Almost surely, 2^{32778338765650} is an apocalyptic number.

32778338765650 is a deficient number, since it is larger than the sum of its proper divisors (31822932666926).

32778338765650 is a wasteful number, since it uses less digits than its factorization.

32778338765650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28211163 (or 28211158 counting only the distinct ones).

The product of its (nonzero) digits is 1066867200, while the sum is 70.

The spelling of 32778338765650 in words is "thirty-two trillion, seven hundred seventy-eight billion, three hundred thirty-eight million, seven hundred sixty-five thousand, six hundred fifty".