39855342426 has 16 divisors (see below), whose sum is σ = 79720028064. Its totient is φ = 13283556944.

The previous prime is 39855342383. The next prime is 39855342473. The reversal of 39855342426 is 62424355893.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333225 + ... + 436748.

It is an arithmetic number, because the mean of its divisors is an integer number (4982501754).

Almost surely, 2^39855342426 is an apocalyptic number.

39855342426 is an abundant number, since it is smaller than the sum of its proper divisors (39864685638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39855342426 is a wasteful number, since it uses less digits than its factorization.

39855342426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778605.

The product of its digits is 6220800, while the sum is 51.

The spelling of 39855342426 in words is "thirty-nine billion, eight hundred fifty-five million, three hundred forty-two thousand, four hundred twenty-six".