71277852328220 has 12 divisors (see below), whose sum is σ = 149683489889304. Its totient is φ = 28511140931280.

The previous prime is 71277852328217. The next prime is 71277852328223. The reversal of 71277852328220 is 2282325877217.

It is an interprime number because it is at equal distance from previous prime (71277852328217) and next prime (71277852328223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71277852328223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781946308186 + ... + 1781946308225.

It is an arithmetic number, because the mean of its divisors is an integer number (12473624157442).

Almost surely, 2^{71277852328220} is an apocalyptic number.

It is an amenable number.

71277852328220 is an abundant number, since it is smaller than the sum of its proper divisors (78405637561084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71277852328220 is a wasteful number, since it uses less digits than its factorization.

71277852328220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563892616420 (or 3563892616418 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 56.

The spelling of 71277852328220 in words is "seventy-one trillion, two hundred seventy-seven billion, eight hundred fifty-two million, three hundred twenty-eight thousand, two hundred twenty".