427525676861421 has 32 divisors (see below), whose sum is σ = 609218457845760. Its totient is φ = 265887127794816.

The previous prime is 427525676861417. The next prime is 427525676861441. The reversal of 427525676861421 is 124168676525724.

It is not a de Polignac number, because 427525676861421 - 2² = 427525676861417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427525676861441) 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, 10569576 + ... + 31092881.

It is an arithmetic number, because the mean of its divisors is an integer number (19038076807680).

Almost surely, 2^{427525676861421} is an apocalyptic number.

It is an amenable number.

427525676861421 is a deficient number, since it is larger than the sum of its proper divisors (181692780984339).

427525676861421 is a wasteful number, since it uses less digits than its factorization.

427525676861421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41665233.

The product of its digits is 270950400, while the sum is 66.

The spelling of 427525676861421 in words is "four hundred twenty-seven trillion, five hundred twenty-five billion, six hundred seventy-six million, eight hundred sixty-one thousand, four hundred twenty-one".