2642022551461 has 2 divisors, whose sum is σ = 2642022551462. Its totient is φ = 2642022551460.

The previous prime is 2642022551453. The next prime is 2642022551533. The reversal of 2642022551461 is 1641552202462.

2642022551461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1502999988961 + 1139022562500 = 1225969^2 + 1067250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2642022551461 - 2³ = 2642022551453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2642022551561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321011275730 + 1321011275731.

It is an arithmetic number, because the mean of its divisors is an integer number (1321011275731).

Almost surely, 2^{2642022551461} is an apocalyptic number.

It is an amenable number.

2642022551461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642022551461 is an equidigital number, since it uses as much as digits as its factorization.

2642022551461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 2642022551461 in words is "two trillion, six hundred forty-two billion, twenty-two million, five hundred fifty-one thousand, four hundred sixty-one".