4803781981601 has 4 divisors (see below), whose sum is σ = 4805143987392. Its totient is φ = 4802419975812.

The previous prime is 4803781981589. The next prime is 4803781981627. The reversal of 4803781981601 is 1061891873084.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4803781981601 - 2²² = 4803777787297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4803781987601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680997605 + ... + 681004658.

It is an arithmetic number, because the mean of its divisors is an integer number (1201285996848).

Almost surely, 2^{4803781981601} is an apocalyptic number.

It is an amenable number.

4803781981601 is a deficient number, since it is larger than the sum of its proper divisors (1362005791).

4803781981601 is a wasteful number, since it uses less digits than its factorization.

4803781981601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362005790.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 4803781981601 in words is "four trillion, eight hundred three billion, seven hundred eighty-one million, nine hundred eighty-one thousand, six hundred one".