1420505444345 has 32 divisors (see below), whose sum is σ = 1952277199488. Its totient is φ = 982933982208.

The previous prime is 1420505444257. The next prime is 1420505444363. The reversal of 1420505444345 is 5434445050241.

It is a cyclic number.

It is not a de Polignac number, because 1420505444345 - 2¹⁰ = 1420505443321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2580719 + ... + 3082388.

It is an arithmetic number, because the mean of its divisors is an integer number (61008662484).

Almost surely, 2^{1420505444345} is an apocalyptic number.

It is an amenable number.

1420505444345 is a deficient number, since it is larger than the sum of its proper divisors (531771755143).

1420505444345 is a wasteful number, since it uses less digits than its factorization.

1420505444345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5663369.

The product of its (nonzero) digits is 768000, while the sum is 41.

The spelling of 1420505444345 in words is "one trillion, four hundred twenty billion, five hundred five million, four hundred forty-four thousand, three hundred forty-five".