670714387729 has 2 divisors, whose sum is σ = 670714387730. Its totient is φ = 670714387728.

The previous prime is 670714387699. The next prime is 670714387771. The reversal of 670714387729 is 927783417076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 649719826704 + 20994561025 = 806052^2 + 144895^2 .

It is a cyclic number.

It is not a de Polignac number, because 670714387729 - 2⁵ = 670714387697 is a prime.

It is not a weakly prime, because it can be changed into another prime (670714387799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335357193864 + 335357193865.

It is an arithmetic number, because the mean of its divisors is an integer number (335357193865).

Almost surely, 2^670714387729 is an apocalyptic number.

It is an amenable number.

670714387729 is a deficient number, since it is larger than the sum of its proper divisors (1).

670714387729 is an equidigital number, since it uses as much as digits as its factorization.

670714387729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24893568, while the sum is 61.

It can be divided in two parts, 6707 and 14387729, that added together give a square (14394436 = 3794²).

The spelling of 670714387729 in words is "six hundred seventy billion, seven hundred fourteen million, three hundred eighty-seven thousand, seven hundred twenty-nine".