71497343152 has 40 divisors (see below), whose sum is σ = 139915464480. Its totient is φ = 35390684160.

The previous prime is 71497343111. The next prime is 71497343153. The reversal of 71497343152 is 25134379417.

It is a super-2 number, since 2×71497343152² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71497343153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116152 + ... + 2149672.

It is an arithmetic number, because the mean of its divisors is an integer number (3497886612).

Almost surely, 2^71497343152 is an apocalyptic number.

It is an amenable number.

71497343152 is a deficient number, since it is larger than the sum of its proper divisors (68418121328).

71497343152 is a wasteful number, since it uses less digits than its factorization.

71497343152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34861 (or 34855 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The spelling of 71497343152 in words is "seventy-one billion, four hundred ninety-seven million, three hundred forty-three thousand, one hundred fifty-two".