71380624077 has 24 divisors (see below), whose sum is σ = 119254384704. Its totient is φ = 40297492224.

The previous prime is 71380624067. The next prime is 71380624093. The reversal of 71380624077 is 77042608317.

71380624077 is a `hidden beast` number, since 7 + 13 + 8 + 0 + 624 + 0 + 7 + 7 = 666.

It is not a de Polignac number, because 71380624077 - 2¹⁴ = 71380607693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71380624067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6820228 + ... + 6830685.

It is an arithmetic number, because the mean of its divisors is an integer number (4968932696).

Almost surely, 2^71380624077 is an apocalyptic number.

It is an amenable number.

71380624077 is a deficient number, since it is larger than the sum of its proper divisors (47873760627).

71380624077 is a wasteful number, since it uses less digits than its factorization.

71380624077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651009 (or 13651006 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 71380624077 in words is "seventy-one billion, three hundred eighty million, six hundred twenty-four thousand, seventy-seven".