11858369512 has 32 divisors (see below), whose sum is σ = 24410279520. Its totient is φ = 5355829440.

The previous prime is 11858369507. The next prime is 11858369521. The reversal of 11858369512 is 21596385811.

It is a super-2 number, since 2×11858369512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415338 + ... + 442969.

It is an arithmetic number, because the mean of its divisors is an integer number (762821235).

Almost surely, 2^11858369512 is an apocalyptic number.

It is an amenable number.

11858369512 is an abundant number, since it is smaller than the sum of its proper divisors (12551910008).

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

11858369512 is a wasteful number, since it uses less digits than its factorization.

11858369512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858481 (or 858477 counting only the distinct ones).

The product of its digits is 518400, while the sum is 49.

The spelling of 11858369512 in words is "eleven billion, eight hundred fifty-eight million, three hundred sixty-nine thousand, five hundred twelve".