127425524721 has 16 divisors (see below), whose sum is σ = 185500602048. Its totient is φ = 77163264000.

The previous prime is 127425524693. The next prime is 127425524747.

127425524721 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 127425524721 - 2⁶ = 127425524657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (127425524791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567936 + ... + 1647201.

It is an arithmetic number, because the mean of its divisors is an integer number (11593787628).

Almost surely, 2^127425524721 is an apocalyptic number.

127425524721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

127425524721 is a deficient number, since it is larger than the sum of its proper divisors (58075077327).

127425524721 is a wasteful number, since it uses less digits than its factorization.

127425524721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216352.

The product of its digits is 313600, while the sum is 42.

The spelling of 127425524721 in words is "one hundred twenty-seven billion, four hundred twenty-five million, five hundred twenty-four thousand, seven hundred twenty-one".