71690742039 has 16 divisors (see below), whose sum is σ = 111567356928. Its totient is φ = 40094517792.

The previous prime is 71690742029. The next prime is 71690742059. The reversal of 71690742039 is 93024709617.

It is a happy number.

It is not a de Polignac number, because 71690742039 - 2⁸ = 71690741783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71690742029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36316512 + ... + 36318485.

It is an arithmetic number, because the mean of its divisors is an integer number (6972959808).

Almost surely, 2^71690742039 is an apocalyptic number.

71690742039 is a deficient number, since it is larger than the sum of its proper divisors (39876614889).

71690742039 is a wasteful number, since it uses less digits than its factorization.

71690742039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72635054.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 71690742039 in words is "seventy-one billion, six hundred ninety million, seven hundred forty-two thousand, thirty-nine".