4149932791 has 4 divisors (see below), whose sum is σ = 4152680784. Its totient is φ = 4147184800.

The previous prime is 4149932789. The next prime is 4149932819. The reversal of 4149932791 is 1972399414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1972399414 = 2 ⋅986199707.

It is a cyclic number.

It is not a de Polignac number, because 4149932791 - 2¹ = 4149932789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4149932771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371730 + ... + 1374751.

It is an arithmetic number, because the mean of its divisors is an integer number (1038170196).

Almost surely, 2^4149932791 is an apocalyptic number.

4149932791 is a deficient number, since it is larger than the sum of its proper divisors (2747993).

4149932791 is a wasteful number, since it uses less digits than its factorization.

4149932791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747992.

The product of its digits is 489888, while the sum is 49.

The square root of 4149932791 is about 64419.9719885068. The cubic root of 4149932791 is about 1606.9919001542.

The spelling of 4149932791 in words is "four billion, one hundred forty-nine million, nine hundred thirty-two thousand, seven hundred ninety-one".