87446464478 has 64 divisors (see below), whose sum is σ = 138343645440. Its totient is φ = 41421196800.

The previous prime is 87446464447. The next prime is 87446464537.

87446464478 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87446464478.

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, 113125700 + ... + 113126472.

It is an arithmetic number, because the mean of its divisors is an integer number (2161619460).

Almost surely, 2^87446464478 is an apocalyptic number.

87446464478 is a deficient number, since it is larger than the sum of its proper divisors (50897180962).

87446464478 is a wasteful number, since it uses less digits than its factorization.

87446464478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173.

The product of its digits is 115605504, while the sum is 62.

The spelling of 87446464478 in words is "eighty-seven billion, four hundred forty-six million, four hundred sixty-four thousand, four hundred seventy-eight".