11948415698 has 18 divisors (see below), whose sum is σ = 18428932431. Its totient is φ = 5809960224.

The previous prime is 11948415683. The next prime is 11948415733. The reversal of 11948415698 is 89651484911.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 11821560529 + 126855169 = 108727^2 + 11263^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=77293.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5718638 + ... + 5720726.

Almost surely, 2^11948415698 is an apocalyptic number.

11948415698 is a deficient number, since it is larger than the sum of its proper divisors (6480516733).

11948415698 is an frugal number, since it uses more digits than its factorization.

11948415698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 2128 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 56.

The spelling of 11948415698 in words is "eleven billion, nine hundred forty-eight million, four hundred fifteen thousand, six hundred ninety-eight".