11625781237 has 16 divisors (see below), whose sum is σ = 14020163200. Its totient is φ = 9417358080.

The previous prime is 11625781159. The next prime is 11625781243. The reversal of 11625781237 is 73218752611.

It is a cyclic number.

It is not a de Polignac number, because 11625781237 - 2¹¹ = 11625779189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11625781193 and 11625781202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11625781537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52464 + ... + 161257.

It is an arithmetic number, because the mean of its divisors is an integer number (876260200).

Almost surely, 2^11625781237 is an apocalyptic number.

It is an amenable number.

11625781237 is a deficient number, since it is larger than the sum of its proper divisors (2394381963).

11625781237 is a wasteful number, since it uses less digits than its factorization.

11625781237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214156.

The product of its digits is 141120, while the sum is 43.

The spelling of 11625781237 in words is "eleven billion, six hundred twenty-five million, seven hundred eighty-one thousand, two hundred thirty-seven".