42626957629 has 2 divisors, whose sum is σ = 42626957630. Its totient is φ = 42626957628.

The previous prime is 42626957591. The next prime is 42626957641. The reversal of 42626957629 is 92675962624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30704501529 + 11922456100 = 175227^2 + 109190^2 .

It is a cyclic number.

It is not a de Polignac number, because 42626957629 - 2²¹ = 42624860477 is a prime.

It is a super-2 number, since 2×42626957629² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42626957029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21313478814 + 21313478815.

It is an arithmetic number, because the mean of its divisors is an integer number (21313478815).

Almost surely, 2^42626957629 is an apocalyptic number.

It is an amenable number.

42626957629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42626957629 is an equidigital number, since it uses as much as digits as its factorization.

42626957629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 58.

The spelling of 42626957629 in words is "forty-two billion, six hundred twenty-six million, nine hundred fifty-seven thousand, six hundred twenty-nine".