16913571428 has 12 divisors (see below), whose sum is σ = 31875577020. Its totient is φ = 7806263712.

The previous prime is 16913571401. The next prime is 16913571491. The reversal of 16913571428 is 82417531961.

It can be written as a sum of positive squares in 2 ways, for example, as 5247843364 + 11665728064 = 72442^2 + 108008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162630443 + ... + 162630546.

It is an arithmetic number, because the mean of its divisors is an integer number (2656298085).

Almost surely, 2^16913571428 is an apocalyptic number.

It is an amenable number.

16913571428 is a deficient number, since it is larger than the sum of its proper divisors (14962005592).

16913571428 is a wasteful number, since it uses less digits than its factorization.

16913571428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325261006 (or 325261004 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The spelling of 16913571428 in words is "sixteen billion, nine hundred thirteen million, five hundred seventy-one thousand, four hundred twenty-eight".