42016430947 has 2 divisors, whose sum is σ = 42016430948. Its totient is φ = 42016430946.

The previous prime is 42016430933. The next prime is 42016430983. The reversal of 42016430947 is 74903461024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42016430947 - 2¹⁹ = 42015906659 is a prime.

It is not a weakly prime, because it can be changed into another prime (42016430927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008215473 + 21008215474.

It is an arithmetic number, because the mean of its divisors is an integer number (21008215474).

Almost surely, 2^42016430947 is an apocalyptic number.

42016430947 is a deficient number, since it is larger than the sum of its proper divisors (1).

42016430947 is an equidigital number, since it uses as much as digits as its factorization.

42016430947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 42016430947 in words is "forty-two billion, sixteen million, four hundred thirty thousand, nine hundred forty-seven".