71678867145 has 16 divisors (see below), whose sum is σ = 120722303040. Its totient is φ = 36216690624.

The previous prime is 71678867137. The next prime is 71678867153. The reversal of 71678867145 is 54176887617.

It is an interprime number because it is at equal distance from previous prime (71678867137) and next prime (71678867153).

It is not a de Polignac number, because 71678867145 - 2³ = 71678867137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125752114 + ... + 125752683.

It is an arithmetic number, because the mean of its divisors is an integer number (7545143940).

Almost surely, 2^71678867145 is an apocalyptic number.

It is an amenable number.

71678867145 is a deficient number, since it is larger than the sum of its proper divisors (49043435895).

71678867145 is a wasteful number, since it uses less digits than its factorization.

71678867145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251504824.

The product of its digits is 15805440, while the sum is 60.

The spelling of 71678867145 in words is "seventy-one billion, six hundred seventy-eight million, eight hundred sixty-seven thousand, one hundred forty-five".