46478987646 has 32 divisors (see below), whose sum is σ = 114409817088. Its totient is φ = 12258194400.

The previous prime is 46478987623. The next prime is 46478987663. The reversal of 46478987646 is 64678987464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42562630 + ... + 42563721.

It is an arithmetic number, because the mean of its divisors is an integer number (3575306784).

Almost surely, 2^46478987646 is an apocalyptic number.

46478987646 is an abundant number, since it is smaller than the sum of its proper divisors (67930829442).

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

46478987646 is a wasteful number, since it uses less digits than its factorization.

46478987646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85126376.

The product of its digits is 390168576, while the sum is 69.

The spelling of 46478987646 in words is "forty-six billion, four hundred seventy-eight million, nine hundred eighty-seven thousand, six hundred forty-six".