16897422878 has 8 divisors (see below), whose sum is σ = 28967010672. Its totient is φ = 7241752656.

The previous prime is 16897422877. The next prime is 16897422881. The reversal of 16897422878 is 87822479861.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16897422878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16897422877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603479375 + ... + 603479402.

It is an arithmetic number, because the mean of its divisors is an integer number (3620876334).

Almost surely, 2^16897422878 is an apocalyptic number.

16897422878 is a deficient number, since it is larger than the sum of its proper divisors (12069587794).

16897422878 is a wasteful number, since it uses less digits than its factorization.

16897422878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206958786.

The product of its digits is 21676032, while the sum is 62.

The spelling of 16897422878 in words is "sixteen billion, eight hundred ninety-seven million, four hundred twenty-two thousand, eight hundred seventy-eight".