11675421387 has 48 divisors (see below), whose sum is σ = 19704222720. Its totient is φ = 6522944256.

The previous prime is 11675421377. The next prime is 11675421409. The reversal of 11675421387 is 78312457611.

11675421387 is a `hidden beast` number, since 1 + 16 + 7 + 542 + 13 + 87 = 666.

It is not a de Polignac number, because 11675421387 - 2⁴ = 11675421371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11675421377) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4597164 + ... + 4599702.

It is an arithmetic number, because the mean of its divisors is an integer number (410504640).

Almost surely, 2^11675421387 is an apocalyptic number.

11675421387 is a deficient number, since it is larger than the sum of its proper divisors (8028801333).

11675421387 is a wasteful number, since it uses less digits than its factorization.

11675421387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152 (or 4149 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

Adding to 11675421387 its reverse (78312457611), we get a palindrome (89987878998).

The spelling of 11675421387 in words is "eleven billion, six hundred seventy-five million, four hundred twenty-one thousand, three hundred eighty-seven".