16825398513 has 32 divisors (see below), whose sum is σ = 27983542272. Its totient is φ = 8736076800.

The previous prime is 16825398481. The next prime is 16825398533. The reversal of 16825398513 is 31589352861.

It is a happy number.

It is not a de Polignac number, because 16825398513 - 2⁵ = 16825398481 is a prime.

It is a super-2 number, since 2×16825398513² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16825398533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470868 + ... + 505338.

It is an arithmetic number, because the mean of its divisors is an integer number (874485696).

Almost surely, 2^16825398513 is an apocalyptic number.

It is an amenable number.

16825398513 is a deficient number, since it is larger than the sum of its proper divisors (11158143759).

16825398513 is a wasteful number, since it uses less digits than its factorization.

16825398513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36605.

The product of its digits is 1555200, while the sum is 51.

The spelling of 16825398513 in words is "sixteen billion, eight hundred twenty-five million, three hundred ninety-eight thousand, five hundred thirteen".