71004040677 has 12 divisors (see below), whose sum is σ = 103009261420. Its totient is φ = 47129318208.

The previous prime is 71004040673. The next prime is 71004040691. The reversal of 71004040677 is 77604040017.

It can be written as a sum of positive squares in 2 ways, for example, as 57200375556 + 13803665121 = 239166^2 + 117489^2 .

It is not a de Polignac number, because 71004040677 - 2² = 71004040673 is a prime.

It is a super-2 number, since 2×71004040677² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71004040673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17223568 + ... + 17227689.

Almost surely, 2^71004040677 is an apocalyptic number.

It is an amenable number.

71004040677 is a deficient number, since it is larger than the sum of its proper divisors (32005220743).

71004040677 is a wasteful number, since it uses less digits than its factorization.

71004040677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34451492 (or 34451489 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The spelling of 71004040677 in words is "seventy-one billion, four million, forty thousand, six hundred seventy-seven".