870612138235487 has 2 divisors, whose sum is σ = 870612138235488. Its totient is φ = 870612138235486.

The previous prime is 870612138235471. The next prime is 870612138235561. The reversal of 870612138235487 is 784532831216078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 870612138235487 - 2⁴ = 870612138235471 is a prime.

It is a super-2 number, since 2×870612138235487² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870612138235417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435306069117743 + 435306069117744.

It is an arithmetic number, because the mean of its divisors is an integer number (435306069117744).

Almost surely, 2^{870612138235487} is an apocalyptic number.

870612138235487 is a deficient number, since it is larger than the sum of its proper divisors (1).

870612138235487 is an equidigital number, since it uses as much as digits as its factorization.

870612138235487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 870612138235487 in words is "eight hundred seventy trillion, six hundred twelve billion, one hundred thirty-eight million, two hundred thirty-five thousand, four hundred eighty-seven".