11852554635538 has 32 divisors (see below), whose sum is σ = 18374233507056. Its totient is φ = 5729859733248.

The previous prime is 11852554635491. The next prime is 11852554635601. The reversal of 11852554635538 is 83553645525811.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9038122284409 + 2814432351129 = 3006347^2 + 1677627^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25023720 + ... + 25492972.

Almost surely, 2^{11852554635538} is an apocalyptic number.

11852554635538 is a deficient number, since it is larger than the sum of its proper divisors (6521678871518).

11852554635538 is a wasteful number, since it uses less digits than its factorization.

11852554635538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471438.

The product of its digits is 86400000, while the sum is 61.

The spelling of 11852554635538 in words is "eleven trillion, eight hundred fifty-two billion, five hundred fifty-four million, six hundred thirty-five thousand, five hundred thirty-eight".