42477730989 has 8 divisors (see below), whose sum is σ = 56642507712. Its totient is φ = 28315720800.

The previous prime is 42477730961. The next prime is 42477731039. The reversal of 42477730989 is 98903777424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42477730989 - 2⁵ = 42477730957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42477730909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655537 + ... + 717414.

It is an arithmetic number, because the mean of its divisors is an integer number (7080313464).

Almost surely, 2^42477730989 is an apocalyptic number.

It is an amenable number.

42477730989 is a deficient number, since it is larger than the sum of its proper divisors (14164776723).

42477730989 is a wasteful number, since it uses less digits than its factorization.

42477730989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383267.

The product of its (nonzero) digits is 21337344, while the sum is 60.

The spelling of 42477730989 in words is "forty-two billion, four hundred seventy-seven million, seven hundred thirty thousand, nine hundred eighty-nine".