87432423478 has 16 divisors (see below), whose sum is σ = 138869097840. Its totient is φ = 41142940416.

The previous prime is 87432423473. The next prime is 87432423517.

87432423478 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87432423473) by changing a digit.

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, 1165633 + ... + 1238371.

It is an arithmetic number, because the mean of its divisors is an integer number (8679318615).

Almost surely, 2^87432423478 is an apocalyptic number.

87432423478 is a deficient number, since it is larger than the sum of its proper divisors (51436674362).

87432423478 is a wasteful number, since it uses less digits than its factorization.

87432423478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108111.

The product of its digits is 7225344, while the sum is 52.

The spelling of 87432423478 in words is "eighty-seven billion, four hundred thirty-two million, four hundred twenty-three thousand, four hundred seventy-eight".