423400255415421 has 8 divisors (see below), whose sum is σ = 566571701591904. Its totient is φ = 281247823091280.

The previous prime is 423400255415419. The next prime is 423400255415491. The reversal of 423400255415421 is 124514552004324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423400255415421 - 2¹ = 423400255415419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423400255415411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254753462115 + ... + 254753463776.

It is an arithmetic number, because the mean of its divisors is an integer number (70821462698988).

Almost surely, 2^{423400255415421} is an apocalyptic number.

It is an amenable number.

423400255415421 is a deficient number, since it is larger than the sum of its proper divisors (143171446176483).

423400255415421 is a wasteful number, since it uses less digits than its factorization.

423400255415421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509506926171.

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 423400255415421 in words is "four hundred twenty-three trillion, four hundred billion, two hundred fifty-five million, four hundred fifteen thousand, four hundred twenty-one".