7834043213 has 4 divisors (see below), whose sum is σ = 7837640640. Its totient is φ = 7830445788.

The previous prime is 7834043183. The next prime is 7834043291. The reversal of 7834043213 is 3123404387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7834043213 - 2¹⁶ = 7833977677 is a prime.

It is a super-2 number, since 2×7834043213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7834043293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1795445 + ... + 1799802.

It is an arithmetic number, because the mean of its divisors is an integer number (1959410160).

Almost surely, 2^7834043213 is an apocalyptic number.

It is an amenable number.

7834043213 is a deficient number, since it is larger than the sum of its proper divisors (3597427).

7834043213 is a wasteful number, since it uses less digits than its factorization.

7834043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597426.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 7834043213 is about 88510.1305670712. The cubic root of 7834043213 is about 1986.0735194022.

The spelling of 7834043213 in words is "seven billion, eight hundred thirty-four million, forty-three thousand, two hundred thirteen".