1234556778883 has 2 divisors, whose sum is σ = 1234556778884. Its totient is φ = 1234556778882.

The previous prime is 1234556778841. The next prime is 1234556778901. The reversal of 1234556778883 is 3888776554321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1234556778883 - 2¹³ = 1234556770691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234556778083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617278389441 + 617278389442.

It is an arithmetic number, because the mean of its divisors is an integer number (617278389442).

Almost surely, 2^{1234556778883} is an apocalyptic number.

1234556778883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234556778883 is an equidigital number, since it uses as much as digits as its factorization.

1234556778883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270950400, while the sum is 67.

The spelling of 1234556778883 in words is "one trillion, two hundred thirty-four billion, five hundred fifty-six million, seven hundred seventy-eight thousand, eight hundred eighty-three".