71890726757 has 8 divisors (see below), whose sum is σ = 74106493056. Its totient is φ = 69703551232.

The previous prime is 71890726753. The next prime is 71890726769. The reversal of 71890726757 is 75762709817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71890726757 - 2² = 71890726753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71890726696 and 71890726705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71890726753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7142588 + ... + 7152645.

It is an arithmetic number, because the mean of its divisors is an integer number (9263311632).

Almost surely, 2^71890726757 is an apocalyptic number.

It is an amenable number.

71890726757 is a deficient number, since it is larger than the sum of its proper divisors (2215766299).

71890726757 is a wasteful number, since it uses less digits than its factorization.

71890726757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14295387.

The product of its (nonzero) digits is 10372320, while the sum is 59.

The spelling of 71890726757 in words is "seventy-one billion, eight hundred ninety million, seven hundred twenty-six thousand, seven hundred fifty-seven".