42478688406 has 64 divisors (see below), whose sum is σ = 107412811776. Its totient is φ = 10878016800.

The previous prime is 42478688327. The next prime is 42478688429. The reversal of 42478688406 is 60488687424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614700 + ... + 680303.

It is an arithmetic number, because the mean of its divisors is an integer number (1678325184).

Almost surely, 2^42478688406 is an apocalyptic number.

42478688406 is an abundant number, since it is smaller than the sum of its proper divisors (64934123370).

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

42478688406 is a wasteful number, since it uses less digits than its factorization.

42478688406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295097.

The product of its (nonzero) digits is 16515072, while the sum is 57.

The spelling of 42478688406 in words is "forty-two billion, four hundred seventy-eight million, six hundred eighty-eight thousand, four hundred six".