16911401947 has 8 divisors (see below), whose sum is σ = 18449856432. Its totient is φ = 15373123200.

The previous prime is 16911401921. The next prime is 16911402041. The reversal of 16911401947 is 74910411961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16911401947 - 2²⁷ = 16777184219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16911401047) 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, 233463 + ... + 297199.

It is an arithmetic number, because the mean of its divisors is an integer number (2306232054).

Almost surely, 2^16911401947 is an apocalyptic number.

16911401947 is a deficient number, since it is larger than the sum of its proper divisors (1538454485).

16911401947 is a wasteful number, since it uses less digits than its factorization.

16911401947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87869.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 16911401947 in words is "sixteen billion, nine hundred eleven million, four hundred one thousand, nine hundred forty-seven".