1099999951537 has 2 divisors, whose sum is σ = 1099999951538. Its totient is φ = 1099999951536.

The previous prime is 1099999951471. The next prime is 1099999951543. The reversal of 1099999951537 is 7351599999901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 838059687936 + 261940263601 = 915456^2 + 511801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099999951537 - 2²⁷ = 1099865733809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1099999951637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549999975768 + 549999975769.

It is an arithmetic number, because the mean of its divisors is an integer number (549999975769).

Almost surely, 2^{1099999951537} is an apocalyptic number.

It is an amenable number.

1099999951537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099999951537 is an equidigital number, since it uses as much as digits as its factorization.

1099999951537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279006525, while the sum is 76.

The spelling of 1099999951537 in words is "one trillion, ninety-nine billion, nine hundred ninety-nine million, nine hundred fifty-one thousand, five hundred thirty-seven".