4051024451561 has 2 divisors, whose sum is σ = 4051024451562. Its totient is φ = 4051024451560.

The previous prime is 4051024451557. The next prime is 4051024451653. The reversal of 4051024451561 is 1651544201504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3367353451225 + 683671000336 = 1835035^2 + 826844^2 .

It is a cyclic number.

It is not a de Polignac number, because 4051024451561 - 2² = 4051024451557 is a prime.

It is not a weakly prime, because it can be changed into another prime (4051024456561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025512225780 + 2025512225781.

It is an arithmetic number, because the mean of its divisors is an integer number (2025512225781).

Almost surely, 2^{4051024451561} is an apocalyptic number.

It is an amenable number.

4051024451561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051024451561 is an equidigital number, since it uses as much as digits as its factorization.

4051024451561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 4051024451561 in words is "four trillion, fifty-one billion, twenty-four million, four hundred fifty-one thousand, five hundred sixty-one".