4178732949 has 8 divisors (see below), whose sum is σ = 6190715520. Its totient is φ = 2785821948.

The previous prime is 4178732939. The next prime is 4178732977. The reversal of 4178732949 is 9492378714.

It is not a de Polignac number, because 4178732949 - 2⁴ = 4178732933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4178732895 and 4178732904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4178732939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77383917 + ... + 77383970.

It is an arithmetic number, because the mean of its divisors is an integer number (773839440).

Almost surely, 2^4178732949 is an apocalyptic number.

It is an amenable number.

4178732949 is a deficient number, since it is larger than the sum of its proper divisors (2011982571).

4178732949 is a wasteful number, since it uses less digits than its factorization.

4178732949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154767896 (or 154767890 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 4178732949 is about 64643.1198891266. The cubic root of 4178732949 is about 1610.7007929980.

The spelling of 4178732949 in words is "four billion, one hundred seventy-eight million, seven hundred thirty-two thousand, nine hundred forty-nine".