1617158758387 has 2 divisors, whose sum is σ = 1617158758388. Its totient is φ = 1617158758386.

The previous prime is 1617158758381. The next prime is 1617158758399. The reversal of 1617158758387 is 7838578517161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1617158758387 - 2¹⁵ = 1617158725619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1617158758381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808579379193 + 808579379194.

It is an arithmetic number, because the mean of its divisors is an integer number (808579379194).

Almost surely, 2^{1617158758387} is an apocalyptic number.

1617158758387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1617158758387 is an equidigital number, since it uses as much as digits as its factorization.

1617158758387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79027200, while the sum is 67.

The spelling of 1617158758387 in words is "one trillion, six hundred seventeen billion, one hundred fifty-eight million, seven hundred fifty-eight thousand, three hundred eighty-seven".