420527425421 has 16 divisors (see below), whose sum is σ = 426716978688. Its totient is φ = 414365991600.

The previous prime is 420527425411. The next prime is 420527425453. The reversal of 420527425421 is 124524725024.

It is a cyclic number.

It is not a de Polignac number, because 420527425421 - 2²⁶ = 420460316557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420527425411) 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, 64782986 + ... + 64789476.

It is an arithmetic number, because the mean of its divisors is an integer number (26669811168).

Almost surely, 2^420527425421 is an apocalyptic number.

It is an amenable number.

420527425421 is a deficient number, since it is larger than the sum of its proper divisors (6189553267).

420527425421 is a wasteful number, since it uses less digits than its factorization.

420527425421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512.

The product of its (nonzero) digits is 179200, while the sum is 38.

The spelling of 420527425421 in words is "four hundred twenty billion, five hundred twenty-seven million, four hundred twenty-five thousand, four hundred twenty-one".