71890826707 has 8 divisors (see below), whose sum is σ = 82325600000. Its totient is φ = 61497217224.

The previous prime is 71890826701. The next prime is 71890826731. The reversal of 71890826707 is 70762809817.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71890826707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71890826701) 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, 10287207 + ... + 10294192.

It is an arithmetic number, because the mean of its divisors is an integer number (10290700000).

Almost surely, 2^71890826707 is an apocalyptic number.

71890826707 is a deficient number, since it is larger than the sum of its proper divisors (10434773293).

71890826707 is a wasteful number, since it uses less digits than its factorization.

71890826707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20581905.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 71890826707 in words is "seventy-one billion, eight hundred ninety million, eight hundred twenty-six thousand, seven hundred seven".