1099880690387 has 2 divisors, whose sum is σ = 1099880690388. Its totient is φ = 1099880690386.

The previous prime is 1099880690327. The next prime is 1099880690407. The reversal of 1099880690387 is 7830960889901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099880690387 - 2¹² = 1099880686291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1099880690327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549940345193 + 549940345194.

It is an arithmetic number, because the mean of its divisors is an integer number (549940345194).

Almost surely, 2^{1099880690387} is an apocalyptic number.

1099880690387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099880690387 is an equidigital number, since it uses as much as digits as its factorization.

1099880690387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 1099880690387 in words is "one trillion, ninety-nine billion, eight hundred eighty million, six hundred ninety thousand, three hundred eighty-seven".