11698644946 has 4 divisors (see below), whose sum is σ = 17547967422. Its totient is φ = 5849322472.

The previous prime is 11698644943. The next prime is 11698644977. The reversal of 11698644946 is 64944689611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64944689611 = 23 ⋅2823682157.

It can be written as a sum of positive squares in only one way, i.e., 11650827721 + 47817225 = 107939^2 + 6915^2 .

It is not an unprimeable number, because it can be changed into a prime (11698644943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2924661235 + ... + 2924661238.

Almost surely, 2^11698644946 is an apocalyptic number.

11698644946 is a deficient number, since it is larger than the sum of its proper divisors (5849322476).

11698644946 is an equidigital number, since it uses as much as digits as its factorization.

11698644946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849322475.

The product of its digits is 8957952, while the sum is 58.

The spelling of 11698644946 in words is "eleven billion, six hundred ninety-eight million, six hundred forty-four thousand, nine hundred forty-six".