16207538267428 has 24 divisors (see below), whose sum is σ = 28392150262784. Its totient is φ = 8095498084800.

The previous prime is 16207538267399. The next prime is 16207538267443. The reversal of 16207538267428 is 82476283570261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23447176 + ... + 24128512.

Almost surely, 2^{16207538267428} is an apocalyptic number.

It is an amenable number.

16207538267428 is a deficient number, since it is larger than the sum of its proper divisors (12184611995356).

16207538267428 is a wasteful number, since it uses less digits than its factorization.

16207538267428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687403 (or 687401 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 16207538267428 in words is "sixteen trillion, two hundred seven billion, five hundred thirty-eight million, two hundred sixty-seven thousand, four hundred twenty-eight".