420354235024545 has 128 divisors (see below), whose sum is σ = 722753814528000. Its totient is φ = 207997411265280.

The previous prime is 420354235024543. The next prime is 420354235024567. The reversal of 420354235024545 is 545420532453024.

It is not a de Polignac number, because 420354235024545 - 2¹ = 420354235024543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420354235024494 and 420354235024503.

It is not an unprimeable number, because it can be changed into a prime (420354235024543) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12921634930 + ... + 12921667460.

It is an arithmetic number, because the mean of its divisors is an integer number (5646514176000).

Almost surely, 2^{420354235024545} is an apocalyptic number.

It is an amenable number.

420354235024545 is a deficient number, since it is larger than the sum of its proper divisors (302399579503455).

420354235024545 is a wasteful number, since it uses less digits than its factorization.

420354235024545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37283.

The product of its (nonzero) digits is 11520000, while the sum is 48.

Adding to 420354235024545 its reverse (545420532453024), we get a palindrome (965774767477569).

The spelling of 420354235024545 in words is "four hundred twenty trillion, three hundred fifty-four billion, two hundred thirty-five million, twenty-four thousand, five hundred forty-five".