127981564608 has 224 divisors, whose sum is σ = 362759012352. Its totient is φ = 39750681600.

The previous prime is 127981564603. The next prime is 127981564609. The reversal of 127981564608 is 806465189721.

It is not an unprimeable number, because it can be changed into a prime (127981564603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18167935 + ... + 18174977.

Almost surely, 2^127981564608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127981564608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181379506176).

127981564608 is an abundant number, since it is smaller than the sum of its proper divisors (234777447744).

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

127981564608 is a wasteful number, since it uses less digits than its factorization.

127981564608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203 (or 7193 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 127981564608 in words is "one hundred twenty-seven billion, nine hundred eighty-one million, five hundred sixty-four thousand, six hundred eight".