2145464454619 has 2 divisors, whose sum is σ = 2145464454620. Its totient is φ = 2145464454618.

The previous prime is 2145464454517. The next prime is 2145464454641. The reversal of 2145464454619 is 9164544645412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145464454619 - 2¹³ = 2145464446427 is a prime.

It is a super-2 number, since 2×2145464454619² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145464454619.

It is not a weakly prime, because it can be changed into another prime (2145464454649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072732227309 + 1072732227310.

It is an arithmetic number, because the mean of its divisors is an integer number (1072732227310).

Almost surely, 2^{2145464454619} is an apocalyptic number.

2145464454619 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145464454619 is an equidigital number, since it uses as much as digits as its factorization.

2145464454619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16588800, while the sum is 55.

The spelling of 2145464454619 in words is "two trillion, one hundred forty-five billion, four hundred sixty-four million, four hundred fifty-four thousand, six hundred nineteen".