17471978068 has 12 divisors (see below), whose sum is σ = 30731170932. Its totient is φ = 8691643520.

The previous prime is 17471978063. The next prime is 17471978081. The reversal of 17471978068 is 86087917471.

It can be written as a sum of positive squares in 2 ways, for example, as 13586699844 + 3885278224 = 116562^2 + 62332^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17471978063) 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, 11085493 + ... + 11087068.

It is an arithmetic number, because the mean of its divisors is an integer number (2560930911).

Almost surely, 2^17471978068 is an apocalyptic number.

It is an amenable number.

17471978068 is a deficient number, since it is larger than the sum of its proper divisors (13259192864).

17471978068 is a wasteful number, since it uses less digits than its factorization.

17471978068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22172762 (or 22172760 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 58.

The spelling of 17471978068 in words is "seventeen billion, four hundred seventy-one million, nine hundred seventy-eight thousand, sixty-eight".