1078840663 has 2 divisors, whose sum is σ = 1078840664. Its totient is φ = 1078840662.

The previous prime is 1078840657. The next prime is 1078840699. The reversal of 1078840663 is 3660488701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1078840663 - 2²¹ = 1076743511 is a prime.

It is a super-2 number, since 2×1078840663² = 2327794352284559138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078843663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539420331 + 539420332.

It is an arithmetic number, because the mean of its divisors is an integer number (539420332).

Almost surely, 2^1078840663 is an apocalyptic number.

1078840663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078840663 is an equidigital number, since it uses as much as digits as its factorization.

1078840663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1078840663 is about 32845.7099634031. The cubic root of 1078840663 is about 1025.6183183461.

The spelling of 1078840663 in words is "one billion, seventy-eight million, eight hundred forty thousand, six hundred sixty-three".