71047586949 has 16 divisors (see below), whose sum is σ = 94903294080. Its totient is φ = 47278520640.

The previous prime is 71047586947. The next prime is 71047586959. The reversal of 71047586949 is 94968574017.

It is not a de Polignac number, because 71047586949 - 2¹ = 71047586947 is a prime.

It is a super-2 number, since 2×71047586949² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71047586892 and 71047586901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71047586947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9174219 + ... + 9181959.

It is an arithmetic number, because the mean of its divisors is an integer number (5931455880).

Almost surely, 2^71047586949 is an apocalyptic number.

It is an amenable number.

71047586949 is a deficient number, since it is larger than the sum of its proper divisors (23855707131).

71047586949 is a wasteful number, since it uses less digits than its factorization.

71047586949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12940.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 71047586949 in words is "seventy-one billion, forty-seven million, five hundred eighty-six thousand, nine hundred forty-nine".