1699816734628 has 12 divisors (see below), whose sum is σ = 3149660420172. Its totient is φ = 799913757440.

The previous prime is 1699816734587. The next prime is 1699816734653. The reversal of 1699816734628 is 8264376189961.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1143312670564 + 556504064064 = 1069258^2 + 745992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12498652393 + ... + 12498652528.

It is an arithmetic number, because the mean of its divisors is an integer number (262471701681).

Almost surely, 2^{1699816734628} is an apocalyptic number.

It is an amenable number.

1699816734628 is a deficient number, since it is larger than the sum of its proper divisors (1449843685544).

1699816734628 is a wasteful number, since it uses less digits than its factorization.

1699816734628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24997304942 (or 24997304940 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 70.

The spelling of 1699816734628 in words is "one trillion, six hundred ninety-nine billion, eight hundred sixteen million, seven hundred thirty-four thousand, six hundred twenty-eight".