39950735971 has 2 divisors, whose sum is σ = 39950735972. Its totient is φ = 39950735970.

The previous prime is 39950735921. The next prime is 39950735999. The reversal of 39950735971 is 17953705993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39950735971 - 2¹¹ = 39950733923 is a prime.

It is a super-2 number, since 2×39950735971² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39950735921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19975367985 + 19975367986.

It is an arithmetic number, because the mean of its divisors is an integer number (19975367986).

Almost surely, 2^39950735971 is an apocalyptic number.

39950735971 is a deficient number, since it is larger than the sum of its proper divisors (1).

39950735971 is an equidigital number, since it uses as much as digits as its factorization.

39950735971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8037225, while the sum is 58.

The spelling of 39950735971 in words is "thirty-nine billion, nine hundred fifty million, seven hundred thirty-five thousand, nine hundred seventy-one".