42787027969 has 16 divisors (see below), whose sum is σ = 49364698240. Its totient is φ = 36325895040.

The previous prime is 42787027967. The next prime is 42787028021. The reversal of 42787027969 is 96972078724.

It is a cyclic number.

It is not a de Polignac number, because 42787027969 - 2¹ = 42787027967 is a prime.

It is a super-2 number, since 2×42787027969² (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 (42787027967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2808637 + ... + 2823829.

It is an arithmetic number, because the mean of its divisors is an integer number (3085293640).

Almost surely, 2^42787027969 is an apocalyptic number.

It is an amenable number.

42787027969 is a deficient number, since it is larger than the sum of its proper divisors (6577670271).

42787027969 is a wasteful number, since it uses less digits than its factorization.

42787027969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19000.

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 42787027969 in words is "forty-two billion, seven hundred eighty-seven million, twenty-seven thousand, nine hundred sixty-nine".