71049613239 has 40 divisors (see below), whose sum is σ = 116866810368. Its totient is φ = 42657881040.

The previous prime is 71049613231. The next prime is 71049613249. The reversal of 71049613239 is 93231694017.

71049613239 is a `hidden beast` number, since 7 + 1 + 0 + 4 + 9 + 613 + 23 + 9 = 666.

It is not a de Polignac number, because 71049613239 - 2³ = 71049613231 is a prime.

It is a super-2 number, since 2×71049613239² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71049613194 and 71049613203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71049613231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 277287 + ... + 467960.

Almost surely, 2^71049613239 is an apocalyptic number.

71049613239 is a deficient number, since it is larger than the sum of its proper divisors (45817197129).

71049613239 is a wasteful number, since it uses less digits than its factorization.

71049613239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745377 (or 745368 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 71049613239 in words is "seventy-one billion, forty-nine million, six hundred thirteen thousand, two hundred thirty-nine".