42972786437 has 8 divisors (see below), whose sum is σ = 51247049856. Its totient is φ = 35232346512.

The previous prime is 42972786431. The next prime is 42972786469. The reversal of 42972786437 is 73468727924.

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

It is a cyclic number.

It is not a de Polignac number, because 42972786437 - 2¹² = 42972782341 is a prime.

It is a super-2 number, since 2×42972786437² (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 (42972786431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133455698 + ... + 133456019.

It is an arithmetic number, because the mean of its divisors is an integer number (6405881232).

Almost surely, 2^42972786437 is an apocalyptic number.

It is an amenable number.

42972786437 is a deficient number, since it is larger than the sum of its proper divisors (8274263419).

42972786437 is a wasteful number, since it uses less digits than its factorization.

42972786437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266911747.

The product of its digits is 28449792, while the sum is 59.

The spelling of 42972786437 in words is "forty-two billion, nine hundred seventy-two million, seven hundred eighty-six thousand, four hundred thirty-seven".