27950881508797 has 12 divisors (see below), whose sum is σ = 30549202151040. Its totient is φ = 25559684583888.

The previous prime is 27950881508723. The next prime is 27950881508813. The reversal of 27950881508797 is 79780518805972.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-27950881508797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27950881508707) 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, 772831597 + ... + 772867762.

It is an arithmetic number, because the mean of its divisors is an integer number (2545766845920).

Almost surely, 2^{27950881508797} is an apocalyptic number.

It is an amenable number.

27950881508797 is a deficient number, since it is larger than the sum of its proper divisors (2598320642243).

27950881508797 is a wasteful number, since it uses less digits than its factorization.

27950881508797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545699492 (or 1545699479 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 76.

The spelling of 27950881508797 in words is "twenty-seven trillion, nine hundred fifty billion, eight hundred eighty-one million, five hundred eight thousand, seven hundred ninety-seven".