71429749065 has 144 divisors (see below), whose sum is σ = 137197577088. Its totient is φ = 34241098752.

The previous prime is 71429749057. The next prime is 71429749109. The reversal of 71429749065 is 56094792417.

71429749065 is a `hidden beast` number, since 7 + 1 + 4 + 2 + 97 + 490 + 65 = 666.

It is not a de Polignac number, because 71429749065 - 2³ = 71429749057 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 72664564 + ... + 72665546.

It is an arithmetic number, because the mean of its divisors is an integer number (952760952).

Almost surely, 2^71429749065 is an apocalyptic number.

It is an amenable number.

71429749065 is a deficient number, since it is larger than the sum of its proper divisors (65767828023).

71429749065 is a wasteful number, since it uses less digits than its factorization.

71429749065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 71429749065 in words is "seventy-one billion, four hundred twenty-nine million, seven hundred forty-nine thousand, sixty-five".