870435653149 has 2 divisors, whose sum is σ = 870435653150. Its totient is φ = 870435653148.

The previous prime is 870435653119. The next prime is 870435653261. The reversal of 870435653149 is 941356534078.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867912097924 + 2523555225 = 931618^2 + 50235^2 .

It is a cyclic number.

It is not a de Polignac number, because 870435653149 - 2²¹ = 870433555997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 870435653149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870435653119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435217826574 + 435217826575.

It is an arithmetic number, because the mean of its divisors is an integer number (435217826575).

Almost surely, 2^870435653149 is an apocalyptic number.

It is an amenable number.

870435653149 is a deficient number, since it is larger than the sum of its proper divisors (1).

870435653149 is an equidigital number, since it uses as much as digits as its factorization.

870435653149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 870435653149 in words is "eight hundred seventy billion, four hundred thirty-five million, six hundred fifty-three thousand, one hundred forty-nine".