11977852149 has 12 divisors (see below), whose sum is σ = 18211939200. Its totient is φ = 7564959144.

The previous prime is 11977852147. The next prime is 11977852151. The reversal of 11977852149 is 94125877911.

11977852149 is a `hidden beast` number, since 1 + 1 + 9 + 7 + 78 + 521 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (11977852147) and next prime (11977852151).

It is not a de Polignac number, because 11977852149 - 2¹ = 11977852147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11977852095 and 11977852104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11977852147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35022789 + ... + 35023130.

It is an arithmetic number, because the mean of its divisors is an integer number (1517661600).

Almost surely, 2^11977852149 is an apocalyptic number.

11977852149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11977852149 is a deficient number, since it is larger than the sum of its proper divisors (6234087051).

11977852149 is a wasteful number, since it uses less digits than its factorization.

11977852149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70045944 (or 70045941 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 54.

The spelling of 11977852149 in words is "eleven billion, nine hundred seventy-seven million, eight hundred fifty-two thousand, one hundred forty-nine".