71004144687 has 32 divisors (see below), whose sum is σ = 111295962624. Its totient is φ = 39419827200.

The previous prime is 71004144637. The next prime is 71004144733. The reversal of 71004144687 is 78644140017.

It is not a de Polignac number, because 71004144687 - 2⁶ = 71004144623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71004144637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36408 + ... + 378594.

It is an arithmetic number, because the mean of its divisors is an integer number (3477998832).

Almost surely, 2^71004144687 is an apocalyptic number.

71004144687 is a deficient number, since it is larger than the sum of its proper divisors (40291817937).

71004144687 is a wasteful number, since it uses less digits than its factorization.

71004144687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342479.

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 71004144687 in words is "seventy-one billion, four million, one hundred forty-four thousand, six hundred eighty-seven".