1623664002319 has 2 divisors, whose sum is σ = 1623664002320. Its totient is φ = 1623664002318.

The previous prime is 1623664002269. The next prime is 1623664002343. The reversal of 1623664002319 is 9132004663261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623664002319 - 2³³ = 1615074067727 is a prime.

It is a super-2 number, since 2×1623664002319² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623664002019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811832001159 + 811832001160.

It is an arithmetic number, because the mean of its divisors is an integer number (811832001160).

Almost surely, 2^{1623664002319} is an apocalyptic number.

1623664002319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623664002319 is an equidigital number, since it uses as much as digits as its factorization.

1623664002319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 1623664002319 in words is "one trillion, six hundred twenty-three billion, six hundred sixty-four million, two thousand, three hundred nineteen".