1081929364493 has 2 divisors, whose sum is σ = 1081929364494. Its totient is φ = 1081929364492.

The previous prime is 1081929364489. The next prime is 1081929364513. The reversal of 1081929364493 is 3944639291801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879360058564 + 202569305929 = 937742^2 + 450077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081929364493 - 2² = 1081929364489 is a prime.

It is a super-2 number, since 2×1081929364493² (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 (1081929324493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540964682246 + 540964682247.

It is an arithmetic number, because the mean of its divisors is an integer number (540964682247).

Almost surely, 2^{1081929364493} is an apocalyptic number.

It is an amenable number.

1081929364493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081929364493 is an equidigital number, since it uses as much as digits as its factorization.

1081929364493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 1081929364493 in words is "one trillion, eighty-one billion, nine hundred twenty-nine million, three hundred sixty-four thousand, four hundred ninety-three".