2912649843 has 6 divisors (see below), whose sum is σ = 3883657764. Its totient is φ = 1941704244.

The previous prime is 2912649841. The next prime is 2912649853. The reversal of 2912649843 is 3489462192.

It is not a de Polignac number, because 2912649843 - 2¹ = 2912649841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2912649792 and 2912649801.

It is not an unprimeable number, because it can be changed into a prime (2912649841) 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 5 ways as a sum of consecutive naturals, for example, 77898 + ... + 109056.

It is an arithmetic number, because the mean of its divisors is an integer number (647276294).

Almost surely, 2^2912649843 is an apocalyptic number.

2912649843 is a deficient number, since it is larger than the sum of its proper divisors (971007921).

2912649843 is an frugal number, since it uses more digits than its factorization.

2912649843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62321 (or 31162 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 2912649843 is about 53968.9711130386. The cubic root of 2912649843 is about 1428.1136133703.

Multiplying 2912649843 by its sum of digits (48), we get a square (139807192464 = 373908²).

The spelling of 2912649843 in words is "two billion, nine hundred twelve million, six hundred forty-nine thousand, eight hundred forty-three".