1551948537179 has 2 divisors, whose sum is σ = 1551948537180. Its totient is φ = 1551948537178.

The previous prime is 1551948537133. The next prime is 1551948537193. The reversal of 1551948537179 is 9717358491551.

It is a strong prime.

It is an emirp because it is prime and its reverse (9717358491551) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1551948537179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1551948536179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775974268589 + 775974268590.

It is an arithmetic number, because the mean of its divisors is an integer number (775974268590).

Almost surely, 2^{1551948537179} is an apocalyptic number.

1551948537179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551948537179 is an equidigital number, since it uses as much as digits as its factorization.

1551948537179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628000, while the sum is 65.

The spelling of 1551948537179 in words is "one trillion, five hundred fifty-one billion, nine hundred forty-eight million, five hundred thirty-seven thousand, one hundred seventy-nine".