11970207844 has 36 divisors (see below), whose sum is σ = 24400415676. Its totient is φ = 5123248704.

The previous prime is 11970207779. The next prime is 11970207863. The reversal of 11970207844 is 44870207911.

It can be written as a sum of positive squares in 2 ways, for example, as 4210712100 + 7759495744 = 64890^2 + 88088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11970207844.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108034 + ... + 188710.

Almost surely, 2^11970207844 is an apocalyptic number.

11970207844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11970207844 is an abundant number, since it is smaller than the sum of its proper divisors (12430207832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11970207844 is a wasteful number, since it uses less digits than its factorization.

11970207844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81452 (or 81443 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 11970207844 in words is "eleven billion, nine hundred seventy million, two hundred seven thousand, eight hundred forty-four".