42780889269 has 12 divisors (see below), whose sum is σ = 65046966400. Its totient is φ = 27019508904.

The previous prime is 42780889253. The next prime is 42780889271. The reversal of 42780889269 is 96298808724.

It is not a de Polignac number, because 42780889269 - 2⁴ = 42780889253 is a prime.

It is a super-2 number, since 2×42780889269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42780889219) 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 in 11 ways as a sum of consecutive naturals, for example, 125090149 + ... + 125090490.

Almost surely, 2^42780889269 is an apocalyptic number.

It is an amenable number.

42780889269 is a deficient number, since it is larger than the sum of its proper divisors (22266077131).

42780889269 is a wasteful number, since it uses less digits than its factorization.

42780889269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250180664 (or 250180661 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 42780889269 in words is "forty-two billion, seven hundred eighty million, eight hundred eighty-nine thousand, two hundred sixty-nine".