421454004013343 has 48 divisors (see below), whose sum is σ = 492967130143488. Its totient is φ = 352957690512000.

The previous prime is 421454004013327. The next prime is 421454004013373. The reversal of 421454004013343 is 343310400454124.

It is not a de Polignac number, because 421454004013343 - 2⁴ = 421454004013327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421454004013297 and 421454004013306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421454004013373) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31614576188 + ... + 31614589518.

It is an arithmetic number, because the mean of its divisors is an integer number (10270148544656).

Almost surely, 2^{421454004013343} is an apocalyptic number.

421454004013343 is a deficient number, since it is larger than the sum of its proper divisors (71513126130145).

421454004013343 is a wasteful number, since it uses less digits than its factorization.

421454004013343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16764 (or 16717 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 421454004013343 its reverse (343310400454124), we get a palindrome (764764404467467).

The spelling of 421454004013343 in words is "four hundred twenty-one trillion, four hundred fifty-four billion, four million, thirteen thousand, three hundred forty-three".