425405807906 has 16 divisors (see below), whose sum is σ = 643179011328. Its totient is φ = 211016508000.

The previous prime is 425405807899. The next prime is 425405807917. The reversal of 425405807906 is 609708504524.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695690 + ... + 1155333.

It is an arithmetic number, because the mean of its divisors is an integer number (40198688208).

Almost surely, 2^425405807906 is an apocalyptic number.

425405807906 is a deficient number, since it is larger than the sum of its proper divisors (217773203422).

425405807906 is a wasteful number, since it uses less digits than its factorization.

425405807906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851937.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 425405807906 in words is "four hundred twenty-five billion, four hundred five million, eight hundred seven thousand, nine hundred six".