127752776500 has 24 divisors (see below), whose sum is σ = 279012064968. Its totient is φ = 51101110400.

The previous prime is 127752776483. The next prime is 127752776509. The reversal of 127752776500 is 5677257721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2292302884 + 125460473616 = 47878^2 + 354204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127752776509) 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, 127752277 + ... + 127753276.

It is an arithmetic number, because the mean of its divisors is an integer number (11625502707).

Almost surely, 2^127752776500 is an apocalyptic number.

127752776500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127752776500 is an abundant number, since it is smaller than the sum of its proper divisors (151259288468).

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

127752776500 is a wasteful number, since it uses less digits than its factorization.

127752776500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255505572 (or 255505560 counting only the distinct ones).

The product of its (nonzero) digits is 1440600, while the sum is 49.

The spelling of 127752776500 in words is "one hundred twenty-seven billion, seven hundred fifty-two million, seven hundred seventy-six thousand, five hundred".