4971049394 has 4 divisors (see below), whose sum is σ = 7456574094. Its totient is φ = 2485524696.

The previous prime is 4971049337. The next prime is 4971049397. The reversal of 4971049394 is 4939401794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4939401794 = 2 ⋅2469700897.

It can be written as a sum of positive squares in only one way, i.e., 3146649025 + 1824400369 = 56095^2 + 42713^2 .

It is a super-2 number, since 2×4971049394² = 49422664155175534472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4971049397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1242762347 + ... + 1242762350.

Almost surely, 2^4971049394 is an apocalyptic number.

4971049394 is a deficient number, since it is larger than the sum of its proper divisors (2485524700).

4971049394 is a wasteful number, since it uses less digits than its factorization.

4971049394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485524699.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 4971049394 is about 70505.6692330482. The cubic root of 4971049394 is about 1706.6692336913.

The spelling of 4971049394 in words is "four billion, nine hundred seventy-one million, forty-nine thousand, three hundred ninety-four".