87494249478 has 16 divisors (see below), whose sum is σ = 175052372976. Its totient is φ = 29154104160.

The previous prime is 87494249467. The next prime is 87494249497.

87494249478 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643601 + ... + 2676492.

It is an arithmetic number, because the mean of its divisors is an integer number (10940773311).

Almost surely, 2^87494249478 is an apocalyptic number.

87494249478 is an abundant number, since it is smaller than the sum of its proper divisors (87558123498).

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

87494249478 is a wasteful number, since it uses less digits than its factorization.

87494249478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322839.

The product of its digits is 130056192, while the sum is 66.

The spelling of 87494249478 in words is "eighty-seven billion, four hundred ninety-four million, two hundred forty-nine thousand, four hundred seventy-eight".