42454129936 has 15 divisors (see below), whose sum is σ = 82256473623. Its totient is φ = 21226652880.

The previous prime is 42454129931. The next prime is 42454129961. The reversal of 42454129936 is 63992145424.

The square root of 42454129936 is 206044.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42454129936.

It is not an unprimeable number, because it can be changed into a prime (42454129931) 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 2 ways as a sum of consecutive naturals, for example, 798421 + ... + 849931.

Almost surely, 2^42454129936 is an apocalyptic number.

42454129936 is the 206044-th square number.

It is an amenable number.

42454129936 is a deficient number, since it is larger than the sum of its proper divisors (39802343687).

42454129936 is an frugal number, since it uses more digits than its factorization.

42454129936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103030 (or 51513 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

Multiplying 42454129936 by its sum of digits (49), we get a square (2080252366864 = 1442308²).

The spelling of 42454129936 in words is "forty-two billion, four hundred fifty-four million, one hundred twenty-nine thousand, nine hundred thirty-six".