42308556769 has 4 divisors (see below), whose sum is σ = 42311673796. Its totient is φ = 42305439744.

The previous prime is 42308556751. The next prime is 42308556809. The reversal of 42308556769 is 96765580324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18370278369 + 23938278400 = 135537^2 + 154720^2 .

It is a cyclic number.

It is not a de Polignac number, because 42308556769 - 2²³ = 42300168161 is a prime.

It is a super-2 number, since 2×42308556769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42308556739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538064 + ... + 1565329.

It is an arithmetic number, because the mean of its divisors is an integer number (10577918449).

Almost surely, 2^42308556769 is an apocalyptic number.

It is an amenable number.

42308556769 is a deficient number, since it is larger than the sum of its proper divisors (3117027).

42308556769 is a wasteful number, since it uses less digits than its factorization.

42308556769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117026.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 42308556769 in words is "forty-two billion, three hundred eight million, five hundred fifty-six thousand, seven hundred sixty-nine".