42551950329 has 48 divisors (see below), whose sum is σ = 73081815040. Its totient is φ = 23345612640.

The previous prime is 42551950319. The next prime is 42551950387. The reversal of 42551950329 is 92305915524.

42551950329 is a `hidden beast` number, since 4 + 2 + 551 + 95 + 0 + 3 + 2 + 9 = 666.

It is not a de Polignac number, because 42551950329 - 2⁵ = 42551950297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42551950319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162252 + ... + 333810.

Almost surely, 2^42551950329 is an apocalyptic number.

It is an amenable number.

42551950329 is a deficient number, since it is larger than the sum of its proper divisors (30529864711).

42551950329 is a wasteful number, since it uses less digits than its factorization.

42551950329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171730 (or 171727 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The spelling of 42551950329 in words is "forty-two billion, five hundred fifty-one million, nine hundred fifty thousand, three hundred twenty-nine".