2124078643 has 2 divisors, whose sum is σ = 2124078644. Its totient is φ = 2124078642.

The previous prime is 2124078637. The next prime is 2124078659. The reversal of 2124078643 is 3468704212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2124078643 - 2¹³ = 2124070451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2124078623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062039321 + 1062039322.

It is an arithmetic number, because the mean of its divisors is an integer number (1062039322).

Almost surely, 2^2124078643 is an apocalyptic number.

2124078643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124078643 is an equidigital number, since it uses as much as digits as its factorization.

2124078643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2124078643 is about 46087.7276831913. The cubic root of 2124078643 is about 1285.4549591904.

The spelling of 2124078643 in words is "two billion, one hundred twenty-four million, seventy-eight thousand, six hundred forty-three".