2481657328901 has 4 divisors (see below), whose sum is σ = 2490882821100. Its totient is φ = 2472431836704.

The previous prime is 2481657328883. The next prime is 2481657328907. The reversal of 2481657328901 is 1098237561842.

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 1449919423876 + 1031737905025 = 1204126^2 + 1015745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2481657328901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481657328907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612745696 + ... + 4612746233.

It is an arithmetic number, because the mean of its divisors is an integer number (622720705275).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2481657328901 = 4963314657802, but 3⋅2481657328901 = 7444971986703 is not.

Almost surely, 2^{2481657328901} is an apocalyptic number.

It is an amenable number.

2481657328901 is a deficient number, since it is larger than the sum of its proper divisors (9225492199).

2481657328901 is an equidigital number, since it uses as much as digits as its factorization.

2481657328901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225492198.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 2481657328901 in words is "two trillion, four hundred eighty-one billion, six hundred fifty-seven million, three hundred twenty-eight thousand, nine hundred one".