1015430979617 has 2 divisors, whose sum is σ = 1015430979618. Its totient is φ = 1015430979616.

The previous prime is 1015430979557. The next prime is 1015430979631. The reversal of 1015430979617 is 7169790345101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990962511841 + 24468467776 = 995471^2 + 156424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015430979617 - 2¹⁰ = 1015430978593 is a prime.

It is a super-2 number, since 2×1015430979617² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1015430979637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507715489808 + 507715489809.

It is an arithmetic number, because the mean of its divisors is an integer number (507715489809).

Almost surely, 2^{1015430979617} is an apocalyptic number.

It is an amenable number.

1015430979617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015430979617 is an equidigital number, since it uses as much as digits as its factorization.

1015430979617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The spelling of 1015430979617 in words is "one trillion, fifteen billion, four hundred thirty million, nine hundred seventy-nine thousand, six hundred seventeen".