16870516847 has 2 divisors, whose sum is σ = 16870516848. Its totient is φ = 16870516846.

The previous prime is 16870516829. The next prime is 16870516891. The reversal of 16870516847 is 74861507861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16870516847 - 2¹⁸ = 16870254703 is a prime.

It is a super-2 number, since 2×16870516847² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16870516807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8435258423 + 8435258424.

It is an arithmetic number, because the mean of its divisors is an integer number (8435258424).

Almost surely, 2^16870516847 is an apocalyptic number.

16870516847 is a deficient number, since it is larger than the sum of its proper divisors (1).

16870516847 is an equidigital number, since it uses as much as digits as its factorization.

16870516847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 16870516847 in words is "sixteen billion, eight hundred seventy million, five hundred sixteen thousand, eight hundred forty-seven".