351401351669 has 2 divisors, whose sum is σ = 351401351670. Its totient is φ = 351401351668.

The previous prime is 351401351633. The next prime is 351401351759. The reversal of 351401351669 is 966153104153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200938820644 + 150462531025 = 448262^2 + 387895^2 .

It is a cyclic number.

It is not a de Polignac number, because 351401351669 - 2¹⁶ = 351401286133 is a prime.

It is a super-2 number, since 2×351401351669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351401351569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175700675834 + 175700675835.

It is an arithmetic number, because the mean of its divisors is an integer number (175700675835).

Almost surely, 2^351401351669 is an apocalyptic number.

It is an amenable number.

351401351669 is a deficient number, since it is larger than the sum of its proper divisors (1).

351401351669 is an equidigital number, since it uses as much as digits as its factorization.

351401351669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 351401351669 in words is "three hundred fifty-one billion, four hundred one million, three hundred fifty-one thousand, six hundred sixty-nine".