1628979582719 has 2 divisors, whose sum is σ = 1628979582720. Its totient is φ = 1628979582718.

The previous prime is 1628979582677. The next prime is 1628979582781. The reversal of 1628979582719 is 9172859798261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1628979582719 - 2⁸ = 1628979582463 is a prime.

It is a super-2 number, since 2×1628979582719² (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 (1628979552719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814489791359 + 814489791360.

It is an arithmetic number, because the mean of its divisors is an integer number (814489791360).

Almost surely, 2^{1628979582719} is an apocalyptic number.

1628979582719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1628979582719 is an equidigital number, since it uses as much as digits as its factorization.

1628979582719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274337280, while the sum is 74.

The spelling of 1628979582719 in words is "one trillion, six hundred twenty-eight billion, nine hundred seventy-nine million, five hundred eighty-two thousand, seven hundred nineteen".