11980623396946 has 4 divisors (see below), whose sum is σ = 17970935095422. Its totient is φ = 5990311698472.

The previous prime is 11980623396893. The next prime is 11980623396947. The reversal of 11980623396946 is 64969332608911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10239968000025 + 1740655396921 = 3199995^2 + 1319339^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (11980623396947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2995155849235 + ... + 2995155849238.

Almost surely, 2^{11980623396946} is an apocalyptic number.

11980623396946 is a deficient number, since it is larger than the sum of its proper divisors (5990311698476).

11980623396946 is an equidigital number, since it uses as much as digits as its factorization.

11980623396946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990311698475.

The product of its (nonzero) digits is 90699264, while the sum is 67.

The spelling of 11980623396946 in words is "eleven trillion, nine hundred eighty billion, six hundred twenty-three million, three hundred ninety-six thousand, nine hundred forty-six".