39220542947 has 2 divisors, whose sum is σ = 39220542948. Its totient is φ = 39220542946.

The previous prime is 39220542929. The next prime is 39220542961. The reversal of 39220542947 is 74924502293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39220542947 - 2¹⁰ = 39220541923 is a prime.

It is not a weakly prime, because it can be changed into another prime (39220542967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19610271473 + 19610271474.

It is an arithmetic number, because the mean of its divisors is an integer number (19610271474).

Almost surely, 2^39220542947 is an apocalyptic number.

39220542947 is a deficient number, since it is larger than the sum of its proper divisors (1).

39220542947 is an equidigital number, since it uses as much as digits as its factorization.

39220542947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 39220542947 in words is "thirty-nine billion, two hundred twenty million, five hundred forty-two thousand, nine hundred forty-seven".