1698709430949 has 8 divisors (see below), whose sum is σ = 2264987263392. Its totient is φ = 1132452276240.

The previous prime is 1698709430947. The next prime is 1698709430983. The reversal of 1698709430949 is 9490349078961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1698709430949 - 2¹ = 1698709430947 is a prime.

It is a super-2 number, since 2×1698709430949² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1698709430947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4976719 + ... + 5307084.

It is an arithmetic number, because the mean of its divisors is an integer number (283123407924).

Almost surely, 2^{1698709430949} is an apocalyptic number.

It is an amenable number.

1698709430949 is a deficient number, since it is larger than the sum of its proper divisors (566277832443).

1698709430949 is a wasteful number, since it uses less digits than its factorization.

1698709430949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10338867.

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 1698709430949 in words is "one trillion, six hundred ninety-eight billion, seven hundred nine million, four hundred thirty thousand, nine hundred forty-nine".