87143011998720 has 264 divisors, whose sum is σ = 291366713413776. Its totient is φ = 22227780698112.

The previous prime is 87143011998719. The next prime is 87143011998821. The reversal of 87143011998720 is 2789911034178.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2763084 + ... + 13487796.

It is an arithmetic number, because the mean of its divisors is an integer number (1103661793234).

Almost surely, 2^{87143011998720} is an apocalyptic number.

87143011998720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87143011998720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145683356706888).

87143011998720 is an abundant number, since it is smaller than the sum of its proper divisors (204223701415056).

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

87143011998720 is a wasteful number, since it uses less digits than its factorization.

87143011998720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724787 (or 10724746 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 87143011998720 in words is "eighty-seven trillion, one hundred forty-three billion, eleven million, nine hundred ninety-eight thousand, seven hundred twenty".