87671686146 has 64 divisors (see below), whose sum is σ = 198413867520. Its totient is φ = 25593805440.

The previous prime is 87671686133. The next prime is 87671686159. The reversal of 87671686146 is 64168617678.

It is an interprime number because it is at equal distance from previous prime (87671686133) and next prime (87671686159).

It is a self number, because there is not a number n which added to its sum of digits gives 87671686146.

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, 4416 + ... + 418763.

It is an arithmetic number, because the mean of its divisors is an integer number (3100216680).

Almost surely, 2^87671686146 is an apocalyptic number.

87671686146 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 87671686146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99206933760).

87671686146 is an abundant number, since it is smaller than the sum of its proper divisors (110742181374).

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

87671686146 is a wasteful number, since it uses less digits than its factorization.

87671686146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423311.

The product of its digits is 16257024, while the sum is 60.

The spelling of 87671686146 in words is "eighty-seven billion, six hundred seventy-one million, six hundred eighty-six thousand, one hundred forty-six".