42969687769 has 4 divisors (see below), whose sum is σ = 43371273744. Its totient is φ = 42568101796.

The previous prime is 42969687757. The next prime is 42969687793. The reversal of 42969687769 is 96778696924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42969687769 - 2⁷ = 42969687641 is a prime.

It is a super-2 number, since 2×42969687769² (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 (42969687799) 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, 200792827 + ... + 200793040.

It is an arithmetic number, because the mean of its divisors is an integer number (10842818436).

Almost surely, 2^42969687769 is an apocalyptic number.

It is an amenable number.

42969687769 is a deficient number, since it is larger than the sum of its proper divisors (401585975).

42969687769 is a wasteful number, since it uses less digits than its factorization.

42969687769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401585974.

The product of its digits is 493807104, while the sum is 73.

The spelling of 42969687769 in words is "forty-two billion, nine hundred sixty-nine million, six hundred eighty-seven thousand, seven hundred sixty-nine".