16717787852 has 24 divisors (see below), whose sum is σ = 30232936272. Its totient is φ = 8083656000.

The previous prime is 16717787851. The next prime is 16717787869. The reversal of 16717787852 is 25878771761.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16717787791 and 16717787800.

It is not an unprimeable number, because it can be changed into a prime (16717787851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463799 + ... + 498542.

It is an arithmetic number, because the mean of its divisors is an integer number (1259705678).

Almost surely, 2^16717787852 is an apocalyptic number.

It is an amenable number.

16717787852 is a deficient number, since it is larger than the sum of its proper divisors (13515148420).

16717787852 is a wasteful number, since it uses less digits than its factorization.

16717787852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962489 (or 962487 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 59.

The spelling of 16717787852 in words is "sixteen billion, seven hundred seventeen million, seven hundred eighty-seven thousand, eight hundred fifty-two".