2981520057601 has 4 divisors (see below), whose sum is σ = 3084331094100. Its totient is φ = 2878709021104.

The previous prime is 2981520057587. The next prime is 2981520057613. The reversal of 2981520057601 is 1067500251892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 646980531201 + 2334539526400 = 804351^2 + 1527920^2 .

It is a cyclic number.

It is not a de Polignac number, because 2981520057601 - 2⁷ = 2981520057473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2981520057641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51405518206 + ... + 51405518263.

It is an arithmetic number, because the mean of its divisors is an integer number (771082773525).

Almost surely, 2^{2981520057601} is an apocalyptic number.

It is an amenable number.

2981520057601 is a deficient number, since it is larger than the sum of its proper divisors (102811036499).

2981520057601 is a wasteful number, since it uses less digits than its factorization.

2981520057601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102811036498.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 2981520057601 in words is "two trillion, nine hundred eighty-one billion, five hundred twenty million, fifty-seven thousand, six hundred one".