2711421643 has 4 divisors (see below), whose sum is σ = 3098767600. Its totient is φ = 2324075688.

The previous prime is 2711421607. The next prime is 2711421683. The reversal of 2711421643 is 3461241172.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2711421643 is a prime.

It is a super-2 number, since 2×2711421643² = 14703614652257638898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2711421683) 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, 193672968 + ... + 193672981.

It is an arithmetic number, because the mean of its divisors is an integer number (774691900).

Almost surely, 2^2711421643 is an apocalyptic number.

2711421643 is a deficient number, since it is larger than the sum of its proper divisors (387345957).

2711421643 is an equidigital number, since it uses as much as digits as its factorization.

2711421643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387345956.

The product of its digits is 8064, while the sum is 31.

The square root of 2711421643 is about 52071.3130523900. The cubic root of 2711421643 is about 1394.4373904930.

The spelling of 2711421643 in words is "two billion, seven hundred eleven million, four hundred twenty-one thousand, six hundred forty-three".