1653729109091 has 2 divisors, whose sum is σ = 1653729109092. Its totient is φ = 1653729109090.

The previous prime is 1653729109061. The next prime is 1653729109103. The reversal of 1653729109091 is 1909019273561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1653729109091 - 2¹⁴ = 1653729092707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1653729109061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826864554545 + 826864554546.

It is an arithmetic number, because the mean of its divisors is an integer number (826864554546).

Almost surely, 2^{1653729109091} is an apocalyptic number.

1653729109091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653729109091 is an equidigital number, since it uses as much as digits as its factorization.

1653729109091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 53.

The spelling of 1653729109091 in words is "one trillion, six hundred fifty-three billion, seven hundred twenty-nine million, one hundred nine thousand, ninety-one".