2154362456473 has 2 divisors, whose sum is σ = 2154362456474. Its totient is φ = 2154362456472.

The previous prime is 2154362456429. The next prime is 2154362456507. The reversal of 2154362456473 is 3746542634512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1436323150089 + 718039306384 = 1198467^2 + 847372^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154362456473 - 2¹³ = 2154362448281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2154362456473.

It is not a weakly prime, because it can be changed into another prime (2154362456573) 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 as a sum of consecutive naturals, namely, 1077181228236 + 1077181228237.

It is an arithmetic number, because the mean of its divisors is an integer number (1077181228237).

Almost surely, 2^{2154362456473} is an apocalyptic number.

It is an amenable number.

2154362456473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154362456473 is an equidigital number, since it uses as much as digits as its factorization.

2154362456473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 52.

The spelling of 2154362456473 in words is "two trillion, one hundred fifty-four billion, three hundred sixty-two million, four hundred fifty-six thousand, four hundred seventy-three".