71503940043 has 12 divisors (see below), whose sum is σ = 103635976080. Its totient is φ = 47506597776.

The previous prime is 71503940029. The next prime is 71503940059. The reversal of 71503940043 is 34004930517.

71503940043 is a `hidden beast` number, since 71 + 503 + 9 + 40 + 0 + 43 = 666.

It is not a de Polignac number, because 71503940043 - 2⁹ = 71503939531 is a prime.

It is a super-2 number, since 2×71503940043² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71503940063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13555183 + ... + 13560456.

It is an arithmetic number, because the mean of its divisors is an integer number (8636331340).

Almost surely, 2^71503940043 is an apocalyptic number.

71503940043 is a deficient number, since it is larger than the sum of its proper divisors (32132036037).

71503940043 is a wasteful number, since it uses less digits than its factorization.

71503940043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27115938 (or 27115935 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 71503940043 in words is "seventy-one billion, five hundred three million, nine hundred forty thousand, forty-three".