127204847551551 has 24 divisors (see below), whose sum is σ = 213059358988672. Its totient is φ = 66080440285200.

The previous prime is 127204847551531. The next prime is 127204847551553. The reversal of 127204847551551 is 155155748402721.

It is not a de Polignac number, because 127204847551551 - 2⁵ = 127204847551519 is a prime.

It is a super-2 number, since 2×127204847551551² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127204847551491 and 127204847551500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127204847551553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25030467265 + ... + 25030472346.

Almost surely, 2^{127204847551551} is an apocalyptic number.

127204847551551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

127204847551551 is a deficient number, since it is larger than the sum of its proper divisors (85854511437121).

127204847551551 is a wasteful number, since it uses less digits than its factorization.

127204847551551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50060939643 (or 50060939632 counting only the distinct ones).

The product of its (nonzero) digits is 15680000, while the sum is 57.

The spelling of 127204847551551 in words is "one hundred twenty-seven trillion, two hundred four billion, eight hundred forty-seven million, five hundred fifty-one thousand, five hundred fifty-one".