67897275471 has 6 divisors (see below), whose sum is σ = 98073842360. Its totient is φ = 45264850308.

The previous prime is 67897275451. The next prime is 67897275497. The reversal of 67897275471 is 17457279876.

67897275471 is a `hidden beast` number, since 6 + 7 + 8 + 97 + 2 + 75 + 471 = 666.

It is not a de Polignac number, because 67897275471 - 2¹³ = 67897267279 is a prime.

It is a super-3 number, since 3×67897275471³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67897275399 and 67897275408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67897275431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3772070851 + ... + 3772070868.

Almost surely, 2^67897275471 is an apocalyptic number.

67897275471 is a deficient number, since it is larger than the sum of its proper divisors (30176566889).

67897275471 is a wasteful number, since it uses less digits than its factorization.

67897275471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544141725 (or 7544141722 counting only the distinct ones).

The product of its digits is 41489280, while the sum is 63.

The spelling of 67897275471 in words is "sixty-seven billion, eight hundred ninety-seven million, two hundred seventy-five thousand, four hundred seventy-one".