1078878993503 has 2 divisors, whose sum is σ = 1078878993504. Its totient is φ = 1078878993502.

The previous prime is 1078878993449. The next prime is 1078878993523. The reversal of 1078878993503 is 3053998788701.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078878993503 is a prime.

It is a super-2 number, since 2×1078878993503² (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 (1078878993523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539439496751 + 539439496752.

It is an arithmetic number, because the mean of its divisors is an integer number (539439496752).

Almost surely, 2^{1078878993503} is an apocalyptic number.

1078878993503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078878993503 is an equidigital number, since it uses as much as digits as its factorization.

1078878993503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 1078878993503 in words is "one trillion, seventy-eight billion, eight hundred seventy-eight million, nine hundred ninety-three thousand, five hundred three".