53642344879 has 2 divisors, whose sum is σ = 53642344880. Its totient is φ = 53642344878.

The previous prime is 53642344853. The next prime is 53642344891. The reversal of 53642344879 is 97844324635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53642344879 - 2¹³ = 53642336687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53642344829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26821172439 + 26821172440.

It is an arithmetic number, because the mean of its divisors is an integer number (26821172440).

Almost surely, 2^53642344879 is an apocalyptic number.

53642344879 is a deficient number, since it is larger than the sum of its proper divisors (1).

53642344879 is an equidigital number, since it uses as much as digits as its factorization.

53642344879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 55.

The spelling of 53642344879 in words is "fifty-three billion, six hundred forty-two million, three hundred forty-four thousand, eight hundred seventy-nine".