87468286478 has 4 divisors (see below), whose sum is σ = 131202429720. Its totient is φ = 43734143238.

The previous prime is 87468286469. The next prime is 87468286489.

87468286478 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×87468286478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21867071618 + ... + 21867071621.

It is an arithmetic number, because the mean of its divisors is an integer number (32800607430).

Almost surely, 2^87468286478 is an apocalyptic number.

87468286478 is a deficient number, since it is larger than the sum of its proper divisors (43734143242).

87468286478 is a wasteful number, since it uses less digits than its factorization.

87468286478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43734143241.

The product of its digits is 231211008, while the sum is 68.

The spelling of 87468286478 in words is "eighty-seven billion, four hundred sixty-eight million, two hundred eighty-six thousand, four hundred seventy-eight".