16938437284 has 6 divisors (see below), whose sum is σ = 29642265254. Its totient is φ = 8469218640.

The previous prime is 16938437273. The next prime is 16938437303. The reversal of 16938437284 is 48273483961.

It can be written as a sum of positive squares in only one way, i.e., 9171892900 + 7766544384 = 95770^2 + 88128^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117304657 + ... + 2117304664.

Almost surely, 2^16938437284 is an apocalyptic number.

It is an amenable number.

16938437284 is a deficient number, since it is larger than the sum of its proper divisors (12703827970).

16938437284 is a wasteful number, since it uses less digits than its factorization.

16938437284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234609325 (or 4234609323 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

The spelling of 16938437284 in words is "sixteen billion, nine hundred thirty-eight million, four hundred thirty-seven thousand, two hundred eighty-four".