87143777280 has 264 divisors, whose sum is σ = 345088041792. Its totient is φ = 19918503936.

The previous prime is 87143777269. The next prime is 87143777291. The reversal of 87143777280 is 8277734178.

It is an interprime number because it is at equal distance from previous prime (87143777269) and next prime (87143777291).

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, 187479 + ... + 457641.

Almost surely, 2^87143777280 is an apocalyptic number.

87143777280 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 87143777280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172544020896).

87143777280 is an abundant number, since it is smaller than the sum of its proper divisors (257944264512).

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

87143777280 is a wasteful number, since it uses less digits than its factorization.

87143777280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270201 (or 270180 counting only the distinct ones).

The product of its (nonzero) digits is 3687936, while the sum is 54.

The spelling of 87143777280 in words is "eighty-seven billion, one hundred forty-three million, seven hundred seventy-seven thousand, two hundred eighty".