42404665125 has 64 divisors (see below), whose sum is σ = 72948395520. Its totient is φ = 21860928000.

The previous prime is 42404665117. The next prime is 42404665151. The reversal of 42404665125 is 52156640424.

It is not a de Polignac number, because 42404665125 - 2³ = 42404665117 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1663224 + ... + 1688526.

It is an arithmetic number, because the mean of its divisors is an integer number (1139818680).

Almost surely, 2^42404665125 is an apocalyptic number.

It is an amenable number.

42404665125 is a deficient number, since it is larger than the sum of its proper divisors (30543730395).

42404665125 is a wasteful number, since it uses less digits than its factorization.

42404665125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25471 (or 25461 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 42404665125 in words is "forty-two billion, four hundred four million, six hundred sixty-five thousand, one hundred twenty-five".