1653260251219 has 2 divisors, whose sum is σ = 1653260251220. Its totient is φ = 1653260251218.

The previous prime is 1653260251207. The next prime is 1653260251259. The reversal of 1653260251219 is 9121520623561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1653260251219 - 2³⁵ = 1618900512851 is a prime.

It is a super-2 number, since 2×1653260251219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1653260251259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826630125609 + 826630125610.

It is an arithmetic number, because the mean of its divisors is an integer number (826630125610).

Almost surely, 2^{1653260251219} is an apocalyptic number.

1653260251219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653260251219 is an equidigital number, since it uses as much as digits as its factorization.

1653260251219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1653260251219 in words is "one trillion, six hundred fifty-three billion, two hundred sixty million, two hundred fifty-one thousand, two hundred nineteen".