11572890237 has 6 divisors (see below), whose sum is σ = 16716397022. Its totient is φ = 7715260152.

The previous prime is 11572890223. The next prime is 11572890247. The reversal of 11572890237 is 73209827511.

It can be written as a sum of positive squares in only one way, i.e., 11038864356 + 534025881 = 105066^2 + 23109^2 .

It is not a de Polignac number, because 11572890237 - 2⁸ = 11572889981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11572890192 and 11572890201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572890247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642938338 + ... + 642938355.

Almost surely, 2^11572890237 is an apocalyptic number.

It is an amenable number.

11572890237 is a deficient number, since it is larger than the sum of its proper divisors (5143506785).

11572890237 is a wasteful number, since it uses less digits than its factorization.

11572890237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285876699 (or 1285876696 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 11572890237 in words is "eleven billion, five hundred seventy-two million, eight hundred ninety thousand, two hundred thirty-seven".