6442542034465 has 16 divisors (see below), whose sum is σ = 7749885738816. Its totient is φ = 5141491502400.

The previous prime is 6442542034459. The next prime is 6442542034517. The reversal of 6442542034465 is 5644302452446.

It is a happy number.

It is not a de Polignac number, because 6442542034465 - 2³ = 6442542034457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2579530 + ... + 4420300.

It is an arithmetic number, because the mean of its divisors is an integer number (484367858676).

Almost surely, 2^{6442542034465} is an apocalyptic number.

It is an amenable number.

6442542034465 is a deficient number, since it is larger than the sum of its proper divisors (1307343704351).

6442542034465 is a wasteful number, since it uses less digits than its factorization.

6442542034465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842480.

The product of its (nonzero) digits is 11059200, while the sum is 49.

The spelling of 6442542034465 in words is "six trillion, four hundred forty-two billion, five hundred forty-two million, thirty-four thousand, four hundred sixty-five".