42678290653 has 2 divisors, whose sum is σ = 42678290654. Its totient is φ = 42678290652.

The previous prime is 42678290647. The next prime is 42678290689. The reversal of 42678290653 is 35609287624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31782688729 + 10895601924 = 178277^2 + 104382^2 .

It is a cyclic number.

It is not a de Polignac number, because 42678290653 - 2²¹ = 42676193501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42678290653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42678291653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21339145326 + 21339145327.

It is an arithmetic number, because the mean of its divisors is an integer number (21339145327).

Almost surely, 2^42678290653 is an apocalyptic number.

It is an amenable number.

42678290653 is a deficient number, since it is larger than the sum of its proper divisors (1).

42678290653 is an equidigital number, since it uses as much as digits as its factorization.

42678290653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 42678290653 in words is "forty-two billion, six hundred seventy-eight million, two hundred ninety thousand, six hundred fifty-three".