2061451022449 has 64 divisors (see below), whose sum is σ = 2634540023808. Its totient is φ = 1569085862400.

The previous prime is 2061451022443. The next prime is 2061451022497. The reversal of 2061451022449 is 9442201541602.

It is not a de Polignac number, because 2061451022449 - 2³ = 2061451022441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061451022441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 710109132 + ... + 710112034.

It is an arithmetic number, because the mean of its divisors is an integer number (41164687872).

Almost surely, 2^{2061451022449} is an apocalyptic number.

It is an amenable number.

2061451022449 is a deficient number, since it is larger than the sum of its proper divisors (573089001359).

2061451022449 is a wasteful number, since it uses less digits than its factorization.

2061451022449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 2061451022449 in words is "two trillion, sixty-one billion, four hundred fifty-one million, twenty-two thousand, four hundred forty-nine".