39895668122 has 8 divisors (see below), whose sum is σ = 59845168596. Its totient is φ = 19947278592.

The previous prime is 39895668107. The next prime is 39895668139. The reversal of 39895668122 is 22186659893.

It is a Cunningham number, because it is equal to 199739²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 39895668121 + 1 = 199739^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181253 + ... + 335624.

Almost surely, 2^39895668122 is an apocalyptic number.

39895668122 is a deficient number, since it is larger than the sum of its proper divisors (19949500474).

39895668122 is a wasteful number, since it uses less digits than its factorization.

39895668122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555472.

The product of its digits is 11197440, while the sum is 59.

The spelling of 39895668122 in words is "thirty-nine billion, eight hundred ninety-five million, six hundred sixty-eight thousand, one hundred twenty-two".