127561578852 has 24 divisors (see below), whose sum is σ = 313309141600. Its totient is φ = 40282603776.

The previous prime is 127561578847. The next prime is 127561578877. The reversal of 127561578852 is 258875165721.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 127561578792 and 127561578801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279740077 + ... + 279740532.

Almost surely, 2^127561578852 is an apocalyptic number.

127561578852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127561578852 is an abundant number, since it is smaller than the sum of its proper divisors (185747562748).

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

127561578852 is a wasteful number, since it uses less digits than its factorization.

127561578852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559480635 (or 559480633 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 57.

The spelling of 127561578852 in words is "one hundred twenty-seven billion, five hundred sixty-one million, five hundred seventy-eight thousand, eight hundred fifty-two".