11989625575 has 24 divisors (see below), whose sum is σ = 15663270800. Its totient is φ = 9078946560.

The previous prime is 11989625573. The next prime is 11989625611. The reversal of 11989625575 is 57552698911.

It is a happy number.

It is not a de Polignac number, because 11989625575 - 2¹ = 11989625573 is a prime.

It is a super-2 number, since 2×11989625575² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11989625573) 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, 565771 + ... + 586579.

Almost surely, 2^11989625575 is an apocalyptic number.

11989625575 is a deficient number, since it is larger than the sum of its proper divisors (3673645225).

11989625575 is a wasteful number, since it uses less digits than its factorization.

11989625575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22051 (or 22046 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 58.

The spelling of 11989625575 in words is "eleven billion, nine hundred eighty-nine million, six hundred twenty-five thousand, five hundred seventy-five".