11969374562 has 4 divisors (see below), whose sum is σ = 17954061846. Its totient is φ = 5984687280.

The previous prime is 11969374561. The next prime is 11969374579. The reversal of 11969374562 is 26547396911.

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., 7172565481 + 4796809081 = 84691^2 + 69259^2 .

It is not an unprimeable number, because it can be changed into a prime (11969374561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2992343639 + ... + 2992343642.

Almost surely, 2^11969374562 is an apocalyptic number.

11969374562 is a deficient number, since it is larger than the sum of its proper divisors (5984687284).

11969374562 is an equidigital number, since it uses as much as digits as its factorization.

11969374562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984687283.

The product of its digits is 2449440, while the sum is 53.

The spelling of 11969374562 in words is "eleven billion, nine hundred sixty-nine million, three hundred seventy-four thousand, five hundred sixty-two".