670434367481 has 2 divisors, whose sum is σ = 670434367482. Its totient is φ = 670434367480.

The previous prime is 670434367331. The next prime is 670434367489. The reversal of 670434367481 is 184763434076.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 630143841856 + 40290525625 = 793816^2 + 200725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670434367481 is a prime.

It is a super-2 number, since 2×670434367481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (670434367489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335217183740 + 335217183741.

It is an arithmetic number, because the mean of its divisors is an integer number (335217183741).

Almost surely, 2^670434367481 is an apocalyptic number.

It is an amenable number.

670434367481 is a deficient number, since it is larger than the sum of its proper divisors (1).

670434367481 is an equidigital number, since it uses as much as digits as its factorization.

670434367481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 670434367481 in words is "six hundred seventy billion, four hundred thirty-four million, three hundred sixty-seven thousand, four hundred eighty-one".