420672025169 has 4 divisors (see below), whose sum is σ = 458914936560. Its totient is φ = 382429113780.

The previous prime is 420672025159. The next prime is 420672025183. The reversal of 420672025169 is 961520276024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420672025169 - 2²⁸ = 420403589713 is a prime.

It is a super-3 number, since 3×420672025169³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420672025139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19121455679 + ... + 19121455700.

It is an arithmetic number, because the mean of its divisors is an integer number (114728734140).

Almost surely, 2^420672025169 is an apocalyptic number.

It is an amenable number.

420672025169 is a deficient number, since it is larger than the sum of its proper divisors (38242911391).

420672025169 is a wasteful number, since it uses less digits than its factorization.

420672025169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38242911390.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 420672025169 in words is "four hundred twenty billion, six hundred seventy-two million, twenty-five thousand, one hundred sixty-nine".