771227540628479 has 8 divisors (see below), whose sum is σ = 868479107335680. Its totient is φ = 678499302605400.

The previous prime is 771227540628397. The next prime is 771227540628521. The reversal of 771227540628479 is 974826045722177.

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 771227540628479 - 2⁴⁰ = 770128029000703 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 (771227540678479) 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, 1130832170669 + ... + 1130832171350.

It is an arithmetic number, because the mean of its divisors is an integer number (108559888416960).

Almost surely, 2^{771227540628479} is an apocalyptic number.

771227540628479 is a deficient number, since it is larger than the sum of its proper divisors (97251566707201).

771227540628479 is a wasteful number, since it uses less digits than its factorization.

771227540628479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261664342061.

The product of its (nonzero) digits is 663828480, while the sum is 71.

The spelling of 771227540628479 in words is "seven hundred seventy-one trillion, two hundred twenty-seven billion, five hundred forty million, six hundred twenty-eight thousand, four hundred seventy-nine".