670407369991 has 2 divisors, whose sum is σ = 670407369992. Its totient is φ = 670407369990.

The previous prime is 670407369949. The next prime is 670407370057. The reversal of 670407369991 is 199963704076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670407369991 - 2⁹ = 670407369479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670407369691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335203684995 + 335203684996.

It is an arithmetic number, because the mean of its divisors is an integer number (335203684996).

Almost surely, 2^670407369991 is an apocalyptic number.

670407369991 is a deficient number, since it is larger than the sum of its proper divisors (1).

670407369991 is an equidigital number, since it uses as much as digits as its factorization.

670407369991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15431472, while the sum is 61.

The spelling of 670407369991 in words is "six hundred seventy billion, four hundred seven million, three hundred sixty-nine thousand, nine hundred ninety-one".