203978932768 has 24 divisors (see below), whose sum is σ = 432474565068. Its totient is φ = 94144122624.

The previous prime is 203978932741. The next prime is 203978932793. The reversal of 203978932768 is 867239879302.

It can be written as a sum of positive squares in 2 ways, for example, as 202079019024 + 1899913744 = 449532^2 + 43588^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245166571 + ... + 245167402.

Almost surely, 2^203978932768 is an apocalyptic number.

It is an amenable number.

203978932768 is an abundant number, since it is smaller than the sum of its proper divisors (228495632300).

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

203978932768 is a wasteful number, since it uses less digits than its factorization.

203978932768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490333996 (or 490333988 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 203978932768 in words is "two hundred three billion, nine hundred seventy-eight million, nine hundred thirty-two thousand, seven hundred sixty-eight".