354021045420405 has 64 divisors (see below), whose sum is σ = 623349375390720. Its totient is φ = 171559814338880.

The previous prime is 354021045420377. The next prime is 354021045420421. The reversal of 354021045420405 is 504024540120453.

It is not a de Polignac number, because 354021045420405 - 2¹⁶ = 354021045354869 is a prime.

It is a super-3 number, since 3×354021045420405³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35030674 + ... + 43990796.

It is an arithmetic number, because the mean of its divisors is an integer number (9739833990480).

Almost surely, 2^{354021045420405} is an apocalyptic number.

It is an amenable number.

354021045420405 is a deficient number, since it is larger than the sum of its proper divisors (269328329970315).

354021045420405 is a wasteful number, since it uses less digits than its factorization.

354021045420405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8962143 (or 8962121 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 354021045420405 its reverse (504024540120453), we get a palindrome (858045585540858).

The spelling of 354021045420405 in words is "three hundred fifty-four trillion, twenty-one billion, forty-five million, four hundred twenty thousand, four hundred five".