39935615146 has 12 divisors (see below), whose sum is σ = 69683573538. Its totient is φ = 17115263592.

The previous prime is 39935615141. The next prime is 39935615149. The reversal of 39935615146 is 64151653993.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31625287225 + 8310327921 = 177835^2 + 91161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39935615093 and 39935615102.

It is not an unprimeable number, because it can be changed into a prime (39935615141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203753041 + ... + 203753236.

Almost surely, 2^39935615146 is an apocalyptic number.

39935615146 is a deficient number, since it is larger than the sum of its proper divisors (29747958392).

39935615146 is a wasteful number, since it uses less digits than its factorization.

39935615146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407506293 (or 407506286 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 52.

The spelling of 39935615146 in words is "thirty-nine billion, nine hundred thirty-five million, six hundred fifteen thousand, one hundred forty-six".