16804870537 has 16 divisors (see below), whose sum is σ = 21073167360. Its totient is φ = 13045286592.

The previous prime is 16804870529. The next prime is 16804870547. The reversal of 16804870537 is 73507840861.

It is a happy number.

It is not a de Polignac number, because 16804870537 - 2³ = 16804870529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16804870547) 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, 1737337 + ... + 1746982.

It is an arithmetic number, because the mean of its divisors is an integer number (1317072960).

Almost surely, 2^16804870537 is an apocalyptic number.

It is an amenable number.

16804870537 is a deficient number, since it is larger than the sum of its proper divisors (4268296823).

16804870537 is a wasteful number, since it uses less digits than its factorization.

16804870537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484392.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 16804870537 in words is "sixteen billion, eight hundred four million, eight hundred seventy thousand, five hundred thirty-seven".