39954916147 has 2 divisors, whose sum is σ = 39954916148. Its totient is φ = 39954916146.

The previous prime is 39954916139. The next prime is 39954916151. The reversal of 39954916147 is 74161945993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39954916147 - 2³ = 39954916139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39954916091 and 39954916100.

It is not a weakly prime, because it can be changed into another prime (39954976147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19977458073 + 19977458074.

It is an arithmetic number, because the mean of its divisors is an integer number (19977458074).

Almost surely, 2^39954916147 is an apocalyptic number.

39954916147 is a deficient number, since it is larger than the sum of its proper divisors (1).

39954916147 is an equidigital number, since it uses as much as digits as its factorization.

39954916147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 58.

The spelling of 39954916147 in words is "thirty-nine billion, nine hundred fifty-four million, nine hundred sixteen thousand, one hundred forty-seven".