870260628409 has 2 divisors, whose sum is σ = 870260628410. Its totient is φ = 870260628408.

The previous prime is 870260628403. The next prime is 870260628533. The reversal of 870260628409 is 904826062078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789604628409 + 80656000000 = 888597^2 + 284000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870260628409 is a prime.

It is a super-2 number, since 2×870260628409² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (870260628403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435130314204 + 435130314205.

It is an arithmetic number, because the mean of its divisors is an integer number (435130314205).

Almost surely, 2^870260628409 is an apocalyptic number.

It is an amenable number.

870260628409 is a deficient number, since it is larger than the sum of its proper divisors (1).

870260628409 is an equidigital number, since it uses as much as digits as its factorization.

870260628409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 870260628409 in words is "eight hundred seventy billion, two hundred sixty million, six hundred twenty-eight thousand, four hundred nine".