11447890237 has 24 divisors (see below), whose sum is σ = 13740192000. Its totient is φ = 9505300896.

The previous prime is 11447890217. The next prime is 11447890249. The reversal of 11447890237 is 73209874411.

It is a de Polignac number, because none of the positive numbers 2^k-11447890237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11447890217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177264 + ... + 233062.

It is an arithmetic number, because the mean of its divisors is an integer number (572508000).

Almost surely, 2^11447890237 is an apocalyptic number.

It is an amenable number.

11447890237 is a deficient number, since it is larger than the sum of its proper divisors (2292301763).

11447890237 is an equidigital number, since it uses as much as digits as its factorization.

11447890237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55945 (or 55938 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 11447890237 in words is "eleven billion, four hundred forty-seven million, eight hundred ninety thousand, two hundred thirty-seven".