1642200261459 has 32 divisors (see below), whose sum is σ = 2228594135040. Its totient is φ = 1075482743808.

The previous prime is 1642200261407. The next prime is 1642200261461. The reversal of 1642200261459 is 9541620022461.

It is not a de Polignac number, because 1642200261459 - 2⁸ = 1642200261203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1642200261459.

It is not an unprimeable number, because it can be changed into a prime (1642200261479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29921707 + ... + 29976539.

It is an arithmetic number, because the mean of its divisors is an integer number (69643566720).

Almost surely, 2^{1642200261459} is an apocalyptic number.

1642200261459 is a deficient number, since it is larger than the sum of its proper divisors (586393873581).

1642200261459 is a wasteful number, since it uses less digits than its factorization.

1642200261459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55651.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 1642200261459 in words is "one trillion, six hundred forty-two billion, two hundred million, two hundred sixty-one thousand, four hundred fifty-nine".