71518868 has 24 divisors (see below), whose sum is σ = 132451200. Its totient is φ = 33719840.

The previous prime is 71518861. The next prime is 71518873. The reversal of 71518868 is 86881517.

It is a super-2 number, since 2×71518868² = 10229896960002848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71518861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058 + ... + 12006.

It is an arithmetic number, because the mean of its divisors is an integer number (5518800).

Almost surely, 2^71518868 is an apocalyptic number.

It is an amenable number.

71518868 is a deficient number, since it is larger than the sum of its proper divisors (60932332).

71518868 is a wasteful number, since it uses less digits than its factorization.

71518868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11047 (or 11045 counting only the distinct ones).

The product of its digits is 107520, while the sum is 44.

The square root of 71518868 is about 8456.8828772781. The cubic root of 71518868 is about 415.0880308729.

The spelling of 71518868 in words is "seventy-one million, five hundred eighteen thousand, eight hundred sixty-eight".